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SVTPerformance's Chain of Restaurants
Pics and Videos Buffet
Are there any other watch enthusiasts here? Some of my Watch Collection.
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<blockquote data-quote="99MustangGTman" data-source="post: 16912084" data-attributes="member: 55199"><p>To answer your question, no, my Rolex doesn't now run fast, and runs within appropriate specs. To be completely honest, i'm not that familiar with deviation and requirements Rolex adhered to in the late 80s/early 90s.</p><p></p><p>I know all newer Rolex movements are COSC certified. To achieve COSC certification, and this is for any watch to be able to receive this certificate from the independent Swiss company, a watch must be able to achieve -4/+6 second deviation per day. This is tested in 5 different positions. For example, one position could be with the crown pulled out completely if the watch doesn't have a hacking feature, another position the watch may be tested in is with the watch completely submerged in water, and other tests as well. These tests are run for around 6-8 days non-stop to make sure the results stay the same and don't change.</p><p></p><p>If you are having issues with the watch running too fast, there is an easier and way cheaper solution. Simply remove the caseback, locate the regulator, it will be small, but you don't have to remove any other parts to get to the regulator. It will be a small circular piece with a flathead screw, next to the screw it will show a +/- sign with an arrow to turn either way. The + symbol will increase the rate at which the second hand moves, and the - symbol does the opposite. Most watch enthusiasts own a Weishi Timegrapher, there are other brands and models, but the Weishi is the standard every watch enthusiast owns.</p><p></p><p>First you want to place the watch on the timegrapher, get a baseline reading of the rate, amplitude, beat error, and parameter which is what you enter since you need to know how many VpH the watch runs at. Most 4 HZ, higher end watches run at 28,800, Omega's Co-Axial runs at 25, 200 VpH w/ a 3.5 HZ beat rate. You'll find lower end automatic watches run at 21,600 VpH. A lower VpH increases the the power reserve, but lowers how smooth the second hand moves.</p><p></p><p>Anyways, if the watch is running too fast, turn the regulator down, just a little bit. Then run the watch on the timegrapher to check the beat error, consistently keep checking it until the rate stays the same each time you test it and you want the watch to stay within the deviation settings. COSC is a superior testing method very expensive companies send their watches to so they can receive the certificate, Omega uses METAS, which tests the watch is 6 different positions. Personally I don't think it makes some monumental difference between the two. Omega just uses them and they may be slightly superior, but it's more to brag IMO.</p><p></p><p></p><p></p><p>+3 seconds is perfectly normal though for your watch.</p><p></p><p></p><p></p><p>-Ray</p></blockquote><p></p>
[QUOTE="99MustangGTman, post: 16912084, member: 55199"] To answer your question, no, my Rolex doesn't now run fast, and runs within appropriate specs. To be completely honest, i'm not that familiar with deviation and requirements Rolex adhered to in the late 80s/early 90s. I know all newer Rolex movements are COSC certified. To achieve COSC certification, and this is for any watch to be able to receive this certificate from the independent Swiss company, a watch must be able to achieve -4/+6 second deviation per day. This is tested in 5 different positions. For example, one position could be with the crown pulled out completely if the watch doesn't have a hacking feature, another position the watch may be tested in is with the watch completely submerged in water, and other tests as well. These tests are run for around 6-8 days non-stop to make sure the results stay the same and don't change. If you are having issues with the watch running too fast, there is an easier and way cheaper solution. Simply remove the caseback, locate the regulator, it will be small, but you don't have to remove any other parts to get to the regulator. It will be a small circular piece with a flathead screw, next to the screw it will show a +/- sign with an arrow to turn either way. The + symbol will increase the rate at which the second hand moves, and the - symbol does the opposite. Most watch enthusiasts own a Weishi Timegrapher, there are other brands and models, but the Weishi is the standard every watch enthusiast owns. First you want to place the watch on the timegrapher, get a baseline reading of the rate, amplitude, beat error, and parameter which is what you enter since you need to know how many VpH the watch runs at. Most 4 HZ, higher end watches run at 28,800, Omega's Co-Axial runs at 25, 200 VpH w/ a 3.5 HZ beat rate. You'll find lower end automatic watches run at 21,600 VpH. A lower VpH increases the the power reserve, but lowers how smooth the second hand moves. Anyways, if the watch is running too fast, turn the regulator down, just a little bit. Then run the watch on the timegrapher to check the beat error, consistently keep checking it until the rate stays the same each time you test it and you want the watch to stay within the deviation settings. COSC is a superior testing method very expensive companies send their watches to so they can receive the certificate, Omega uses METAS, which tests the watch is 6 different positions. Personally I don't think it makes some monumental difference between the two. Omega just uses them and they may be slightly superior, but it's more to brag IMO. +3 seconds is perfectly normal though for your watch. -Ray [/QUOTE]
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Are there any other watch enthusiasts here? Some of my Watch Collection.
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