A Jughans logo is engraved in a polished rotor. is the wheel's moment of inertia in kilogram-meter2 and The SELLITA SW210-1 is an improved clone version of the obsolete ETA 2801-2 movement. There are usually 27 cities (corresponding to 24 major time zones) on the city bezel, starting with GMT/UTC: Peter Henlein has often been described as the inventor of the first pocket watch, the "Nuremberg egg", in 1510, but this claim appears to be a 19th-century invention and does not appear in older sources. Modern mechanical watches require of the order of 1 microwatt of power on average. If … 17 Jewels 6497 mechanical hand winding vitage mens watch movement M12 5 out of 5 stars (1) 1 product ratings - 17 Jewels 6497 mechanical hand winding vitage mens watch movement M12 If the seconds hand is co-axial with the minute and hour hand, that is it is pivoted at the center of the dial, this arrangement is called "center seconds" or "sweep seconds", because the seconds hand sweeps around the minute track on the dial. In some of the wheels, the rotating shaft can wear away the hole until it is oval shaped, eventually causing the gear to jam, stopping the watch. 21,600 BPH Movement Diameter: 30.40 mm. We stock a multitude of Chinese mechanical watch movements. $175.49. Watch movements come in various shapes to fit different case styles, such as round, tonneau, rectangular, rectangular with cut corners, oval and baguette, and are measured in lignes, or in millimetres. Mechanical movements that fascinate … Mechanical Men's Watches : Find the perfect style for any occasion from the best watch brands with Overstock Your Online Watches Store! Esslinger carries Chinese, Japanese, and Swiss made mechanical movements made by ETA and Miyota/Citizen. ", "What is Automatic Watch Movement Disassembly - Automatic Winding mechanism Date Mechanism", Video Assembly of a Rolex 3135 Mechanical Watch Movement, Alliance Horlogere, Hand-winding Mechanical Watch Movement Disassembly, Disassembling a mechanical wristwatch, Horlogerie-Suisse, Reassembling a mechanical wristwatch, Horlogerie-Suisse, Working of a simple mechanical watch, Horlogerie-Suisse, Explanations Of The Mechanical Movements In A Watch, TimeZone.com, Automatic Movements Of A Mechanical Watch, How Stuff Works, https://en.wikipedia.org/w/index.php?title=Mechanical_watch&oldid=993669898, Articles with unsourced statements from January 2017, Creative Commons Attribution-ShareAlike License, An indicating dial, usually a traditional, Pallets - These are the angled rectangular surfaces on the. [9], In 1948 Zenith introduced a watch with a redesigned gear train where the fourth wheel was at the center of the movement, and so could drive a center seconds hand directly. Sofly offers a wide range of high quality movements at low costs. Completing this procedure, the watch movement (or individual components) are placed within the demagnetizer and slowly drawn away from the machine, thus reducing the magnetic field. It is doubtful whether adding jewels in addition to the ones listed above is really useful in a watch. 11. 1. The mainspring is automatically wound as a result of this energy transfer. The cannon pinion drives a small 12-to-1 reduction gearing called the motion work that turns the hour wheel and hand once for every 12 revolutions of the minute hand. Arguably none of these additions adds to the accuracy or longevity of the watch. [19][20] Most of these additional jewels were totally nonfunctional; they never contacted moving parts, and were included just to increase the jewel count. The mainspring that powers the watch, a spiral ribbon of spring steel, is inside a cylindrical barrel, with the outer end of the mainspring attached to the barrel. Mechanical watches have no battery, microchip, or circuitry. The escapement is what makes the 'ticking' sound which is heard in an operating mechanical watch. In bearings two different types are used: in the winding mechanism, The minute wheel, which had previously been at the center of the movement, was moved off center and drove the minute hand indirectly. ", "Question 1.1.5: Are more jewels better? It is a pleasantly thin watch with a concave dial and super luminous strap material, which is environmentally friendly. Was: £35.59. You drop the watch, it get into a sudden impact and suddenly it goes dead. n2 = (n1 * z1) / z2, z1 = Number of barrel teeth While there are numerous dial and strap options available, this black variant with cream-colored strap and case are neutral enough to pair with most casualwear. Initially center seconds hands were driven off the third wheel, sometimes via an intermediate wheel, with the gearing on the outside of the top plate. If you would rather have your second hand at the 6 … Service can help restore a degraded runtime. 8 bids. Qualité et petits prix garantis, il ne vous reste plus qu’à valider votre panier et à cliquer sur «Acheter maintenant». [citation needed] Because the mainspring provides an uneven source of power (its torque steadily decreases as the spring unwinds), watches from the early 16th century to the early 19th century featured a chain-driven fusee which served to regulate the torque output of the mainspring throughout its winding. 5. Built in the 17th century, this watch had no batteries and was fully driven by mechanics. A mechanical watch is powered by a mainspring. Photo Credit: SSPopov. Mechanical Automatic Watch Replacement Movement Calendar Display Watch Repa E8Y2. Mens Flywheel Bridge Movement … Following your watch accuracy result obtained using the Toolwatch app, three cases can be listed if your accuracy is not between the -10/+10spd (sec per day) range. As the escape wheel turns, its tooth pushes against the lever, which gives the balance wheel a brief push, keeping it swinging back and forth. | How To Look Sharp WITHOUT Suits, 5 Types Of Meetings & What To Wear | How To Dress For An Interview, Funeral, Wedding, or Networking Events. WooHoo! A watch with a mechanical movement is always going to suffer from some amount of variation in its ability to keep accurate time. Free Shipping. 9. Because the gearing was outside the plates, it added to the thickness of the movement, and because the rotation of the third wheel had to be geared up to turn the seconds hand once a minute, the seconds hand had a fluttering motion. Watch movements are the command of the whole watch. It released its Defy Lab model in September 2017, boldly proclaiming it to be the most accurate mechanical watch in the world. A mechanical digital watch uses a mechanical movement to power the digital display as opposed to whats commonly termed a digital watch which usually refers to the electronically powered type. Similar sponsored items Feedback on our suggestions - Similar sponsored items. Free Shipping. C’est simple comme bonjour. So watch manufacturers made the number of jewels, one of the few metrics differentiating quality watches, a major advertising point, listing it prominently on the watch's face. Details. Also considered a mechanical watch, this movement is worthy of your attention. or Best Offer. shipping: + $5.00 shipping . Nom: Mechanical Watch Movement Modèle: 719177 Caractéristiques Couleur: blanc + gris Matériaux: cuivre + acier Taille: 29 * 5mm Type: NH36 Caractéristiques-100% Neuf et de haute qualité.-Le produit est solide, durable, longue durée de vie. shipping: + $5.00 shipping . Moving the regulator lever slides the curb pins up or down the spring to control its effective length. 79. The static coefficient of friction of steel-on-steel is 0.58, while that of sapphire-on-steel is 0.10-0.15.[14]. A mechanical watch movement according to claim 6, further comprising two fixed rings having the shape of circular crowns and being superposed to said base plate, said pins having one end set in one of said rings. When the arbor is in a vertical position, its rounded end bears against the surface of the capstone, lowering friction. The mechanical watch is a mature technology, and most ordinary watch movements have the same parts and work the same way. £32.74. Quartz technology is improving, and the frequency of the crystal is being increased to better mimic the movement of a mechanical movement… 33 watching. The sideways force applied by the driving gear causes more pressure and friction on one side of the hole. An automatic movement and a manual movement use the same basic mechanisms to measure and display the time. Well chances are your watch might have some internal damage in it. The first and most popular is quartz, which works by feeding an electrical current through a quartz crystal via a watch battery and uses the vibrations of that crystal to keep time. [10], Jewel bearings were invented and introduced in watches by Nicolas Fatio (or Facio) de Duillier and Pierre and Jacob Debaufre around 1702[11][12] to reduce friction. It is a round, Swiss-made watch, and its most distinguishing characteristic is a non-reflective sapphire crystal. AU $39.58. £13.13. The hairspring is the heart of the watch; if you’ve seen a mechanical watch movement running, you’ll appreciate that metaphor, as the hairspring “beats” back and forth at a steady rate anywhere between 18,000 and 36,000 times per hour. Mechanical watches are powered by a mainspring. Considered to be the most traditional movement, manual movements are the oldest type of watch movement. If you rest your watch on a stereo speaker with a large magnet inside of it or even an iPhone, the magnetic fields can transfer to the parts of a movement. Second, they can increase the life of the bearings. $14.00. £25.00. and more; Feature #1 MIYOTA analog quartz movements. Nor does jeweling additional wheel bearings increase the useful life of the movement; as mentioned above most of the other wheels do not get enough wear to need them. Watch parts are machined to near perfection at microscopic sizes and tolerances and can produce accuracy within 2 - 3 seconds per day. The original watch movement, mechanical watches feature no battery of any kind within their construction. Mechanical watches are typically not as accurate as quartz watches,[1][2][3] and they require periodic cleaning and calibration by a skilled watchmaker. So the first mechanism to be jeweled in watches was the balance wheel pivots, followed by the escapement. [22], Until the quartz revolution of the 1970s, all watches were mechanical. ... Chinese Made Watch Movement R30. High Quality 17 Jewels 6498 Hand Winding ST3621 Mechanical Movement for Watch. It celebrates its 80th anniversary this year. The difference between an automatic and a mechanical movement is that the automatic movement continues to tick without having to wind it each day. z2 = Number of center pinion leaves The other end of the lever has a fork which engages with an upright impulse pin on the balance wheel shaft. Vintage tressa Mens Mechanical Handwinding Movement Wrist Watch OG189. The rotor can rotate freely and is connected to the movement. A wide variety of mechanical watch movement options are available to you, such as crystals, movements, and tools. 7. The best animation which explains the mechanical movement of a watch. The hairspring is the heart of the watch; if you’ve seen a mechanical watch movement running, you’ll appreciate that metaphor, as the hairspring “beats” back and forth at a steady rate anywhere between 18,000 and 36,000 times per hour.The precision of the watch depends largely on the tension of this hairspring, as well as its resistance to temperature changes and magnetism. Modern precision (a few seconds per day) was not attained by any watch until 1760, when John Harrison created his marine chronometers. "The Theory of Horology", Charles-Andre Reymondin, et al., Swiss Federation of Technical Colleges, 1999, THE PURSUIT OF CENTER SECONDS BY WALT ODETS, THE PURSUIT OF CENTER SECONDS Part 2 BY WALT ODETS, Photos of it can be seen in Berkavicius article, International Organization for Standardization, South Georgia and the South Sandwich Islands, "Question 1.5: Why should I get a mechanical watch when a quartz watch is so much cheaper and more accurate? Zenith, now owned by luxury conglomerate LVMH, has been a watchmaker based in Le Locle, in the heart of Switzerland’s watchmaking industry, since 1865. κ AU $18.08 postage. This method of driving the seconds hand is called indirect center seconds. $279.49. so it swings back and forth faster, causing the watch to run faster. Get 5% in rewards with Club O! Details. where Whereas a mechanically-wound watch must be wound with the pendant or a levered setting, an automatic watch does not need to be wound by the pendant; simply rotating the watch winds the watch automatically. A wide variety of mechanical watch movement options are available to you, There are 27,993 mechanical watch movement suppliers, mainly located in Asia. It does this by using an off-center weighted rotor which spins as you … You can order watch movement replacements for brands, such as Rolex, Citizen, Cartier, Piaget, Omega, ETA, SEIKO and more. 8,257 mechanical watch movement products are offered for sale by suppliers on Alibaba.com, of which mechanical watches accounts for 47%, quartz watches accounts for 26%, and wristwatches accounts for 13%. However, by the early 20th century watch movements had been standardized to the point that there was little difference between their mechanisms, besides quality of workmanship. Unfortunately, the fusees were very brittle,[citation needed] were very easy to break,[citation needed] and were the source of many problems, especially inaccuracy of timekeeping when the fusee chain became loose or lost its velocity[citation needed] after the lack of maintenance. Watch movements are arguably the most important part of a watch: as the heart and brains of our timekeeping devices, you need to have a movement if you want your watch to work. [13] The advantage of using jewels is that their ultrahard slick surface has a lower coefficient of friction with metal. Consumers, with little else to go on, learned to equate more jewels with more quality in a watch. In the mechanical movement, the pulses are much less perceptible, 28,800 beats per hour for the ETA Valjoux 7750, resulting in a continuous sweep. , Difference Between $50 & $500 Watches | Watch Craftsmanship Movement Complications & Quality | 5 Key Differences of Low Vs High End Watches, 5 Watch Styles Every Man Should Know | Men’s Guide To Types Of Watches, Sizes, Prices, & Bands, No SUIT? Any fluttering due to the indirect gearing is concealed by the relatively slow movement of the minute hand. The interior of an automatic watch houses a swiveling metal or brass "plate" that swivels on its axis when the watch is shaken horizontally.[23]. The Victorinox Maverick mechanical watch is one of the best watches available on the market. Akribos XXIV Men's Stainless-Steel Mechanical Skeleton Mesh Rose-Tone Bracelet Watch. In 1974, the International Organization for Standardization (ISO) in collaboration with the Swiss watch industry standards organization Normes de l'Industrie Horlogère Suisse (NIHS) published a standard, ISO 1112, which prohibited manufacturers from including such nonfunctional jewels in the jewel counts in advertising and sales literature. £3.99 postage. Friction in the wheel train bearings and the escapement causes slight variations in the impulses applied to the balance wheel, causing variations in the rate of timekeeping. Mechanical watches are hand-wound timepieces that use a complex movement comprised of – often – hundreds of small parts that are orchestrated to work in harmony which make the watch tick.Many of the mechanical watches produced in-house by Swiss watch brands can fetch upwards of hundreds of thousands of dollars or even millions of dollars at auction.However, they also sell for a lot less in many cases. P&P: + £15.50 P&P . Watch movements are arguably the most important part of a watch: as the heart and brains of our timekeeping devices, you need to have a movement if you want your watch to work. Sale ends in 10 hours. $175.49. This manual wind watch 11.5 ligne movement, features 19 jewels and Incabloc shock system. Some say it was Abraham-Louis Perrelet (1777) while others credit Hubert Sarton (1778). As manual-wound mechanical watches became less popular and less favored in the 1970s, watch design and industrialists came out with the automatic watch. The force of the mainspring turns the barrel. In order to understand how an automatic movement works one has to go back in time to the oldest watch construct, the mechanical watch movement. The balance wheel keeps time for the watch. Friction has the greatest effect in the wheels that move the fastest, so they benefit most from jewelling. Like the mainspring on a mechanical watch, this is the power source of the watch. With regular wear, the watch continues to function. Job Lot of Vintage Mechanical Watch Movement for Watch Parts / Watchmaker (189) £9.99. And they’re separated by their movement type — the mechanism by which these watches keep time. Watches often had garnet, quartz, or even glass jewels; only top quality watches used sapphire or ruby. The rotor spins with each movement of the wrist, transferring the energy to the mainspring. 17 Jewels 6497 mechanical hand winding vitage mens watch movement M12 5 out of 5 stars (1) 1 product ratings - 17 Jewels 6497 mechanical hand winding vitage mens watch movement M12 This translates into 2.5, 3, 4, and 5 Hz respectively, or 18000, 21,600, 28,800, and 36,000 beats per hour (BPH). Being a self-winding watch, the Maverick has automatic movement. A separate set of gears called the keyless work winds the mainspring when the crown is rotated, and when the crown is pulled out a short distance allow the hands to be turned to set the watch. The movement I used for my watch is an ETA 6497, which has its second hand located at the 9 o’clock position. Best Omega Movement. There are 8,257 suppliers who sells mechanical watch movement on … A mechanical watch … In unjeweled bearings, the pivots of the watch's wheels rotate in holes in the plates supporting the movement. The only difference between sapphire and ruby is that different impurities have been added to change the color; there is no difference in their properties as a bearing. Akribos XXIV Men's Stainless-Steel Mechanical Skeleton Mesh Rose-Tone Bracelet Watch. For nearly 40 years, MIYOTA has been providing watch movements for leading brands worldwide. ETA Mechanical Watch Movements ... SELLITA Swiss Made SW210-1 Incabloc 19 Jewels Watch Movement. The internal mechanism of a watch, excluding the face and hands, is called the movement. Around the 1960s this 'jewel craze' reached new heights, and manufacturers made watches with 41, 53, 75, or even 100 jewels. Here is the smallest watch in the world with the smallest mechanical movement, and you’ll be surprised to learn that it was originally made 80 years ago in 1929. For example, the Waltham 100 jewel watch consisted of an ordinary 17 jewel movement, with 83 tiny pieces of ruby mounted around the automatic winding rotor.[21]. This redesign brought all the train gearing between the plates and allowed a thinner movement. Although mechanical movements are the preferred movement, the type of mechanical movement for you comes down to personal preference. A mechanical watch is a watch that uses a clockwork mechanism to measure the passage of time, as opposed to quartz watches which function electronically via a small battery.A mechanical watch is driven by a mainspring which must be wound either periodically by hand or via an automatic winding mechanism. The difference concerns how the mainspring is wound. Along with manual movement watches, the other type of mechanical movement is the automatic movement, also known as the self-winding movement. This type debuted in the early 20th century. When did the automatic mechanical movement originate? κ The quartz vibrates 32768 times per second, creating a signal with a precise frequency. Most parts are interchangeable with the ETA 2801-2. There are no numbers stamped on the movement. AU $179.30 . in the equation above, decreasing the wheel's period Genuine Rolex 1920s Vintage Mens Wristwatch Movement with 26.5mm Enamel Dial . Ok! n2 = Number of revolutions of the center pinion (duration of run). The mechanical watch movement. [11] In 1902, a process to grow artificial sapphire crystals was invented, making jewels much cheaper. Details. Thickness: 6.90 mm. Automatic watches in particular require special care to maintain accuracy; if you’re going to have the watch off your wrist for more than a day, make sure to store it on a watch winder to keep it ticking. A 17 jewel watch has every bearing from the balance wheel to the center wheel pivot bearings jeweled, so it was considered a 'fully jeweled' watch. Function: hour, minute; 1 eye (dual time at 12), and fly wheel at 6. Hole jewels - These are donut shaped sleeve bearings used to support the arbor (shaft) of most wheels. [15] First, reduced friction can increase accuracy. Mechanical watches may have these complications: The mechanical watch is a mature technology, and most ordinary watch movements have the same parts and work the same way.[7]. UNIQUE AND RARE EXAMPLE OF TIMEPIECE. The ritual of daily winding your watch is not required with an automatic watch. Details. Cortebert Cal. Until the 20th century they were ground from tiny pieces of natural gems. It has two curb pins which embrace the last turn of the spring, holding the part behind the pins motionless, so the position of the curb pins determines the length of the spring. The stem attached to the crown has a gear called the clutch or castle wheel, with two rings of teeth that project axially from the ends. Marine chronometers, the most accurate portable timepieces, often have only 7 jewels. Mechanical or manual timepieces perform virtually the same function as those powered by quartz movement. Only 1 left. Watches usually start gaining or losing many seconds or minutes a day when the balance is magnetized. When self-winding watches were introduced in the 1950s, several wheels in the automatic winding mechanism were jeweled, increasing the count to 25–27. Was $5,854.99. While these watches are quite sophisticated, they are not without their drawbacks. The best source for vintage watches offering this beautiful amazing large skeletonized dress a CUSTOMIZED WATCH that dates to 1942 and decorated with the HIGH QUALITY FLORAL ENGRAVING.It was made by the “ Omega Factory” in Switzerland. Cracking the shell of the 3D-printed metal mechanical watch movement could forever change the economics and power bases of today’s luxury wristwatch industry. Each specific watch movement is called a caliber. Movement #1: Zenith Defy Lab. Free postage. Capstones or cap jewels - When the arbor of a wheel is in the vertical position, the shoulder of the arbor bears against the side of the hole jewel, increasing friction. The spring (also called a mainspring ), needs to be wound periodically. … ", "Coefficients of friction for various horological materials", "Question 1.1.3: What does 17 jewels mean? [citation needed]. Taking on that name illustrates the importance of movement manufacturing within the company and as a result, OMEGA watch movements are highly respected for their steadfast performance. Even the mainspring barrel arbor was sometimes jeweled, making the total 23. ", Hand-winding Mechanical Watch Movement Mainspring, Mechanical Clock / Watch Movement Gear Train Photos, "Question 1.1.4: Why do they use synthetic ruby? This spring, once tightened, comes unwound in regular increments that can be measured as – you guessed it – time. We stock a multitude of Chinese mechanical watch movements. Mechanical watch-movement with incorporated chronometer movement (chronograph movement) v3.espacenet.com Mouvement d'hor loge ri e mécanique a ve c … Components of the quartz movement: Battery. Rougois RSL33-BLK Mechanical Movement Skeleton Watch. A mechanical watch is driven by a mainspring which must be wound either periodically by hand or via a self-winding mechanism. It also comes with a stainless steel case and a flat sapphire crystal that is designed with an anti-reflection coating. Although initially this was a good measure of quality, it gave manufacturers an incentive to increase the jewel count. This spring transfers energy through a number of springs and gears, powering the function of the watch hands and the complications. When the stem is pushed in, the outer teeth turn the ratchet wheel on top of the mainspring barrel, which turns the shaft that the inner end of the mainspring is attached to, winding the mainspring tighter around the shaft. The center wheel drives the pinion of the third wheel, and the third wheel drives the pinion of the fourth wheel. [20] It does not increase accuracy, since the only wheels which have an effect on the balance wheel, those in the going train, are already jeweled. It consists of a weighted wheel which rotates back and forth, which is returned toward its center position by a fine spiral spring, the balance spring or "hair spring". It is the most accurate type of movement currently being produced. The contemporary version of the Calibre 101 has been souped up a bit. The precision of the watch depends largely on the tension of this hairspring, as well as its resistance to temperature changes and magnetism. Hand sizes … A metal weight called a rotor is added to the manual parts. MIYOTA’s heritage dates back to 1959, when Citizen Watch established a movement-making factory in the town of Miyota, Japan, and traces back to an original spirit of excellence and innovation. Thanks to movement companies like ETA which mass-produce mechanical movements for man… P&P: + £1.99 P&P . No Problem! Mechanical Watch Movement Disassembly, we use a simple China Made Hand-Winding movement as example. {\displaystyle \kappa \,} In order to select the correct movement you will need to search based on its functionality (calendar position and hands), size, and thickness. Charles Hubert IP-plated Stainless Steel White Dial Pocket Watch by Versil . From research and development to global service, every quartz and mechanical movement receives our utmost attention in terms of both materials and quality. So long as you wear it on your wrist, the motion of your arm keeps the watch wound. Cracking the shell of the 3D-printed metal mechanical watch movement could forever change the economics and power bases of today’s luxury wristwatch industry. Famous for being the world’s first mechanical watch made completely via automated assembly, the Sistem 51 offers an automatic movement with date visible through a transparent case back. - Peut être utilisé comme pièce de rechange pour faciliter le remplacement de votre mouvement. There are different types of watch movements: quartz movements, automatic movements, and mechanical movements. {\displaystyle \kappa \,} 5. But don’t despair, as there’s one movement in particular that always makes for a silly-affordable chronograph: namely, the Sea-Gull ST19. shipping: + $5.00 shipping . This does not include taking the watch off before bed. The wheel and spring together constitute a harmonic oscillator. Only 2 left. An automatic, or self-winding, movement is a mechanical movement first marketed in the beginning decades of the 20th century. A good way to test if your watch has been magnetized … You’re not alone. Watches with mechanical movement - Automatic watch for men and women Some mechanical watch movements are able to run for a week. Then in the 19th century both were superseded by the lever escapement which has been used almost exclusively ever since. {\displaystyle I\,} Mechanical Vs. Quartz Watch Movement: How Do They Work. The exact duration of run for a mechanical movement is calculated with this formula:[8] {\displaystyle T\,} Its force is transmitted through a series of gears to power the balance wheel, a weighted wheel which oscillates back and forth at a constant rate. n1 = Number of revolutions of the barrel If the movement is dirty or worn, the power may not transfer from the mainspring efficiently to the escapement. Mechanical. MIYOTA 8247 Mechanical Automatic Watch Movement with stem NEW Calibre: 8247 Ligne: 11 - 1/2" Overall diameter: Φ26.00mm Case fitting diameter: Φ25.60mm Total height: 5.67mm Small second 24 hour hand Vibration frequency: 21600 Jewels: 21 Info: Automatic Include: holder, screws, stem If you want more than 5pcs, please contact us directly through the ebay messaging system and we send you … The inside of an automatic or mechanical watch is made of hundreds of parts that work seamlessly to run the watch. Is called the movement is added to the escapement is what makes 'ticking., microchip, or 10 beats per second how Do they work option having! Having this great watch demagnetizer to safely and quickly demagnetize your watch is made of hundreds of that... Most ordinary watch movements SELLITA Swiss made mechanical movements are the preferred movement, features 19 jewels and Incabloc system., this is the Jaeger-LeCoultre Calibre 101 has been souped up a bit must be periodically... 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