Chuck P Posted May 12, 2015 Report Share Posted May 12, 2015 So the chronograph on my dw 6239 finally quit. Still keeps time but chronograph have out. Should I look for another a7750 or look for a gen Swiss 7760 or.....? I LOVE the watch so I can't give up on it. Quote Link to comment Share on other sites More sharing options...
stray_cat Posted May 12, 2015 Report Share Posted May 12, 2015 I would get it serviced by a good modder that *knows* the quirks of modified A7750s? (there are a few on the rep boards) An OTB A7750 benefits from a proper service anyway and should make it last longer than new but YMMV. If you have more to spend, it's an opportunity to use it as a base for a build and make it something special. 1 Quote Link to comment Share on other sites More sharing options...
SSTEEL Posted May 12, 2015 Report Share Posted May 12, 2015 It could be the hand tube that has come loose from the hand itself. Run the chronograph for a minute or so, and see if the minute counter registers. Quote Link to comment Share on other sites More sharing options...
Chuck P Posted May 13, 2015 Author Report Share Posted May 13, 2015 I opened it up and found the start/stop and reset levels all out of whack. Slid all back into place and it works again! However it is poorly constructed and undoubtedly a time bomb. Need to keep my eyes open for a replacement. Quote Link to comment Share on other sites More sharing options...
panerai153 Posted May 14, 2015 Report Share Posted May 14, 2015 Honestly, if you really love this watch, and it's a frequent wearer, I would be on the lookout for an ETA 7750. Just remember the 7750 comes in a bunch of different configurations, subdial locations, date, etc. so when you look, make sure what you buy is what you need. I believe the one that has the subdials at 3,6,9 is the 7753' but not sure. They aren't cheap, but they are a lot better movements. Sent from my iPad using Tapatalk Quote Link to comment Share on other sites More sharing options...
Chuck P Posted July 30, 2015 Author Report Share Posted July 30, 2015 Circling back to this. Will a Swiss 7753 with rotor removed fit in the DW a7750 case? And will the DW a7750 hands fit the Swiss 7753 movt? I have heard that there could be a slight size difference in the hands. Quote Link to comment Share on other sites More sharing options...
autlnd Posted July 30, 2015 Report Share Posted July 30, 2015 +1 Same boat..... 7750 in my dw 6239 has not died on me, but I do not think the stem is long enough because it won't wind! Quote Link to comment Share on other sites More sharing options...
alligoat Posted August 2, 2015 Report Share Posted August 2, 2015 I've also read that the hand sizes between the swiss and asian movements vary- particularly the subdials- but maybe the center seconds hand also. Have you thought about buying an asian 7750 with the same dial configuration and see if that works? http://www.ebay.com/itm/Modified-Clone-7750-7753-automatic-daytona-chronograph-movement-strip-finishing-/221496008334?hash=item339230de8e Quote Link to comment Share on other sites More sharing options...
Chuck P Posted August 2, 2015 Author Report Share Posted August 2, 2015 Thanks alligoat. I have one on order that should work. I think there are several versions. Of course I won't try to replace until the current one completely quits. Sent from my iPad using Tapatalk Quote Link to comment Share on other sites More sharing options...
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