irolexu Posted February 14, 2012 Report Share Posted February 14, 2012 As the title states...I've always loved the Daytona and I have read on some dealers sights that they have a more reliable 31 jewel movement and don't know what to think of it. Also I know that the a7750 has been modded to be better and if I can do that who would be the best to do the job. And also if I do get it modded can I safely use the chrono features? Quote Link to comment Share on other sites More sharing options...
Valty Posted February 15, 2012 Report Share Posted February 15, 2012 Quick answer, The "improved" 31 jewels version is marketing, it's still a timebomb. The graphite treatment of the movement is not proved to be 100% functional, and is not cheap. Domenico have said he has "the" solution to make the movement reliable, when The Zig said he is not convinced about the result. Anyway, my opinion is it does not worth the cost, just compare photos of rep Daytona's and gen, the rep is still not good at all... Case is fat, dial is ugly, etc, etc, etc. Just my 2 cents Quote Link to comment Share on other sites More sharing options...
jimmy Posted February 15, 2012 Report Share Posted February 15, 2012 I sent mine to Speedy G for service, it has been running like a champ for over a month, I try not to use the stopwatch and when I go to bed I hack the movt, kind of pain to reset it in the am, but so far, so good!! Quote Link to comment Share on other sites More sharing options...
irolexu Posted February 16, 2012 Author Report Share Posted February 16, 2012 Why do you hack the movement? Quote Link to comment Share on other sites More sharing options...
jimmy Posted February 16, 2012 Report Share Posted February 16, 2012 I was told that if it's hacked when off your wrist it will last longer?? Quote Link to comment Share on other sites More sharing options...
Logan Posted February 16, 2012 Report Share Posted February 16, 2012 9 hours less running per day.. so hacking will help.. still not ideal. Another options is just hand wind the thing up to full every morning, gives it enough grunt to run for the full day. Mind you with the 3135 being replicated maybe the 4130 will get done.. it would be a fairly easy movement to copy really, (as copying movements goes), it's built for volume production and reliability.. so all the parts are nice and big.. and there aren't too many. Quote Link to comment Share on other sites More sharing options...
turngeno Posted March 21, 2012 Report Share Posted March 21, 2012 Reliable daytona clone Quote Link to comment Share on other sites More sharing options...
joint05 Posted April 29, 2015 Report Share Posted April 29, 2015 at the moment we have the SA3135. the 4130 use some parts of the 3135. so if think one day they will released a 1:1 daytona because this watch is so popular. Quote Link to comment Share on other sites More sharing options...
mymanmatt Posted April 30, 2015 Report Share Posted April 30, 2015 short answer NO!!! Quote Link to comment Share on other sites More sharing options...
joint05 Posted April 30, 2015 Report Share Posted April 30, 2015 @mymanmatt : do you have contact to factories? Quote Link to comment Share on other sites More sharing options...
dwswatches Posted April 30, 2015 Report Share Posted April 30, 2015 When I was a dealer I use to sell a Swiss 7750 Valjoux Movement Daytona and they use to be reliable, although I think I use to sell them or about £750.00!!! I', not sure if they are still around, or if this movement is still around? Quote Link to comment Share on other sites More sharing options...
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