highoeyazmuhudee Posted December 30, 2008 Report Share Posted December 30, 2008 hey guys, I've managed to regulate my 4813 within +2 seconds a day. HOWEVER I find after the date change at midnight at some point there after the minute hand loses time and slows down, thus lagging behind. maybe losing about 30secs a day in terms of posistioning in relation to the NOW accurate second hand. any ideas? thanks Quote Link to comment Share on other sites More sharing options...
FxrAndy Posted December 30, 2008 Report Share Posted December 30, 2008 it may be as simple as the date change mech adding too much drag on the movement as it changes i am not sure what is required to oil this part on this type of movement, but if i rememeber the quick change on this movement has 2 flat disks one with a pin and one with a cut out and when the pin reaches the end of the cut out the date changes. So if you have to much drag between the disks then it would be hard for it ti change Of couse this is all a big guess but you never know Quote Link to comment Share on other sites More sharing options...
Rolexman Posted December 30, 2008 Report Share Posted December 30, 2008 Indeed, I would also disassemble the quick date mechanism and see what is going on. You could always remove the small gear which connects the hour gear with the quick date mechanism. This way you can rule out the drag. I'm currently working on this particular movement so I will post some detailled pics for you so you know what I mean. I think that will be somewhere tomorrow afternoon. Quote Link to comment Share on other sites More sharing options...
highoeyazmuhudee Posted January 1, 2009 Author Report Share Posted January 1, 2009 i remember reading a short thread about this exact problem before on the forum , i just cant find that thread again. other than that and the movement having a bit of judder in the sweep as explained on yet another thread as to why, its a great movement, and considering it costs $25. Quote Link to comment Share on other sites More sharing options...
Rolexman Posted January 1, 2009 Report Share Posted January 1, 2009 This is what you see with the dial, hands and date wheel removed. If you remove this gear you disable the complete Quick Date mechanism. Different parts of the mechanism which could cause drag? Quote Link to comment Share on other sites More sharing options...
szvwj Posted January 1, 2009 Report Share Posted January 1, 2009 Awesome reply ROLEXMAN!! Quote Link to comment Share on other sites More sharing options...
highoeyazmuhudee Posted January 2, 2009 Author Report Share Posted January 2, 2009 very awesome Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.