gplracer Posted December 24, 2009 Report Share Posted December 24, 2009 Seasons Greetings!!! I have an a DW 7750 based 6263 Daytona. Originally there was something wrong with the movement so I had it replaced. I know it is best to remove the auto winding gears so it can be wound frequently without wear. How hard is this to do and is there a tutorial anywhere? Thanks!!! Quote Link to comment Share on other sites More sharing options...
gioarmani Posted December 24, 2009 Report Share Posted December 24, 2009 Not sure where you got that info from...your wording is a little vague; if you're referring to removing the rotor and only manually winding it, very bad choice. The A7750s have chintzy gears and shred easily when winding. It has been recommended repeatedly to wind them as little as possible for that reason. Quote Link to comment Share on other sites More sharing options...
gplracer Posted December 24, 2009 Author Report Share Posted December 24, 2009 My understanding is that the manual winding is bad because it can put excessive wear on the auto winding gears which then put metal shavings in the case. (not good) By removing the auto winding gears most of this problem is removed. Basically I will have a A7750 on the way to me very soon because the person that I got it from is replacing it. I figure the auto winding gears need to come out. The rotor has to be removed so the low profile case back will fit. That means manual winding is the only option. Quote Link to comment Share on other sites More sharing options...
rosnik Posted December 24, 2009 Report Share Posted December 24, 2009 Best is to pass at 7760 Vj . Quote Link to comment Share on other sites More sharing options...
lanikai Posted December 24, 2009 Report Share Posted December 24, 2009 Not sure where you got that info from...your wording is a little vague; if you're referring to removing the rotor and only manually winding it, very bad choice. The A7750s have chintzy gears and shred easily when winding. It has been recommended repeatedly to wind them as little as possible for that reason. +100 Quote Link to comment Share on other sites More sharing options...
gplracer Posted December 24, 2009 Author Report Share Posted December 24, 2009 Quote Link to comment Share on other sites More sharing options...
freddy333 Posted December 24, 2009 Report Share Posted December 24, 2009 The primary purpose in removing the auto-wind gears is to produce a faux manual-wind movement as was used in vintage 62xx Daytonas. The only damage (from frequent manual winding) occurs to the auto-wind components themselves & this is eliminated once the auto-wind function is disabled. Read this. Quote Link to comment Share on other sites More sharing options...
kbh Posted December 24, 2009 Report Share Posted December 24, 2009 The primary purpose in removing the auto-wind gears is to produce a faux manual-wind movement as was used in vintage 62xx Daytonas. The only damage (from frequent manual winding) occurs to the auto-wind components themselves & this is eliminated once the auto-wind function is disabled. Read this. I'm glad you posted this Freddy. I was always under the impression that once the winding gears were removed it was exactly the same as a 7760 movement, which was built to be manual wind. Isn't that correct? Quote Link to comment Share on other sites More sharing options...
gplracer Posted December 24, 2009 Author Report Share Posted December 24, 2009 Thanks for posting Freddy. I thought this but am still unsure of myself (noob) and I do not want to post incorrect things. So the question remains. Is the removal of the auto winding gears easy or something left to a watchmaker? Any tutorials? Quote Link to comment Share on other sites More sharing options...
freddy333 Posted December 24, 2009 Report Share Posted December 24, 2009 I was always under the impression that once the winding gears were removed it was exactly the same as a 7760 movement, which was built to be manual wind. Isn't that correct? Besides the lack of auto-wind module, I believe the 7760 has only 17 jewels (to the 7750's 24) & uses a slightly different pillar plate (same dimensions, but excludes the fittings for an auto-wind module), but is otherwise the same. Watchtime did an in-depth exposé on the Valjoux 7750 in 2008 (I do not remember the specific issue) that is worth having if you can locate copy. Is the removal of the auto winding gears easy or something left to a watchmaker? Any tutorials? It is very easy if you have the tools & competence to remove the movement from the case & then remove & disassemble the auto-wind module (3 screws). Otherwise, I would definitely leave this to a competent watchsmith, who should be able to complete the work in a matter of minutes. Quote Link to comment Share on other sites More sharing options...
gplracer Posted January 2, 2010 Author Report Share Posted January 2, 2010 Are these the three screws that need to be removed? Is there anything else or any other precautions that need to be done? Quote Link to comment Share on other sites More sharing options...
freddy333 Posted January 2, 2010 Report Share Posted January 2, 2010 Yes, but once the bridge is removed, some of the chrono components will shift their positions (which are held in place by the bridge) & these must be reset during bridge reinstallation. This is why I suggested it may be best to have a professional handle this for you. Quote Link to comment Share on other sites More sharing options...
Martyd3 Posted January 2, 2010 Report Share Posted January 2, 2010 GO FOR IT!!! Quote Link to comment Share on other sites More sharing options...
gplracer Posted January 2, 2010 Author Report Share Posted January 2, 2010 I am getting conflicting processes.................. lol Quote Link to comment Share on other sites More sharing options...
jmb Posted January 2, 2010 Report Share Posted January 2, 2010 I get the impression that Freddy indicates it's kinda "fiddly" getting all of the bits lined back up and getting the bridge back on after removing it and Marty sez, "No guts, no glory!" Quote Link to comment Share on other sites More sharing options...
gplracer Posted January 2, 2010 Author Report Share Posted January 2, 2010 Quote Link to comment Share on other sites More sharing options...
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