irolexu Posted August 22, 2013 Report Share Posted August 22, 2013 I have a friend with a AP ROO with Asian valjoux 7750 that he just can't keep it alive. He has serviced it, had it repaired, parts replaced and still it runs terrible. I am trying to help him possibly opt for a genuine Swiss ETA 7750 17j movement. Any experience swapping out movements with the genuine counterpart? Hands compatible? Datewheel transferrable? How will it fit the case? Many thanks in advance for your replies! Link to comment Share on other sites More sharing options...
ghost Posted August 23, 2013 Report Share Posted August 23, 2013 It's a sec at 12 i guess? Those have problems inherent to the movement. Time was, there was a dude that did some graphite treatment on it, but he went the way of amelia earhart (sp?) Link to comment Share on other sites More sharing options...
FxrAndy Posted August 23, 2013 Report Share Posted August 23, 2013 I don't even know it the sec at 12 modulal will fit a Swiss 7750 but even if it did it would not solve the problems as it lays with the sec at 12 modulal and not the movement it's self Link to comment Share on other sites More sharing options...
Yannou Posted August 23, 2013 Report Share Posted August 23, 2013 Domi has done this job on my Tour Auto 2010...just ask him Link to comment Share on other sites More sharing options...
FxrAndy Posted August 23, 2013 Report Share Posted August 23, 2013 Well maybe it can be done but the issue is not the movement but the modification Link to comment Share on other sites More sharing options...
irolexu Posted August 23, 2013 Author Report Share Posted August 23, 2013 So I assume the natural lay out would be seconds at 9? Link to comment Share on other sites More sharing options...
Yannou Posted August 24, 2013 Report Share Posted August 24, 2013 Well maybe it can be done but the issue is not the movement but the modification Yes Domi added jewels on the modded plate at 12 Link to comment Share on other sites More sharing options...
FxrAndy Posted August 24, 2013 Report Share Posted August 24, 2013 So I assume the natural lay out would be seconds at 9? Correct I have yet to see how the jewels are added and I really would be interested to see it, I assume that the watch is still running ? Did that mod also solve the stuttering of the sub seconds hand? Link to comment Share on other sites More sharing options...
Guru1 Posted August 25, 2013 Report Share Posted August 25, 2013 Domi will do a jewel mod incl a service to the a7750 and everything will be perfect.He can also swap the a7750 with eta 7750 and do the jewel mod to the transfer gears.I have 4 with gen 7750 and all have jewel modds and run fine.Sent from my iPad using Tapatalk Link to comment Share on other sites More sharing options...
xelorrolex Posted September 29, 2013 Report Share Posted September 29, 2013 I have a Swiss Valjoux 7750 for sale ... if it helps ! Xel Link to comment Share on other sites More sharing options...
irolexu Posted October 2, 2013 Author Report Share Posted October 2, 2013 Domi will do a jewel mod incl a service to the a7750 and everything will be perfect. He can also swap the a7750 with eta 7750 and do the jewel mod to the transfer gears. I have 4 with gen 7750 and all have jewel modds and run fine. Sent from my iPad using Tapatalk Mind me asking how much he charges? Link to comment Share on other sites More sharing options...
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