gplracer Posted September 28, 2009 Report Share Posted September 28, 2009 I love my spinmaster 6263. I just wondered how a watch with an Asian 7750 (7760 now) will hold up if it is worn and wound daily. Also, I find that after 40 winds each day the movement runs just over 24 hours. Is this about right? Quote Link to comment Share on other sites More sharing options...
rosnik Posted September 28, 2009 Report Share Posted September 28, 2009 Mine VJ GEN 7760 get 48 houres. Quote Link to comment Share on other sites More sharing options...
theblueprince Posted September 28, 2009 Report Share Posted September 28, 2009 (edited) Mine lasts 48 hours from a full wind. It's weird as it does not tighten and stop turning as it gets fully wound up. But the feel totally changes instead once full wound. You can feel that the winding is not having an effect on the spring anymore. Think it's about 9 months old now. Only prob is the minute chrono totaliser resets to 59 not 0 but it's always been like that. Easy 60 second fix if i want it to sit at 0. Edited September 28, 2009 by TheBluePrince Quote Link to comment Share on other sites More sharing options...
gplracer Posted September 28, 2009 Author Report Share Posted September 28, 2009 Blue prince is yours a 7750 rotor removed? Quote Link to comment Share on other sites More sharing options...
coolfire Posted September 28, 2009 Report Share Posted September 28, 2009 Mine gets about 48 hours too. Had it since last August. Quote Link to comment Share on other sites More sharing options...
Toadtorrent Posted September 28, 2009 Report Share Posted September 28, 2009 Mine lasts 48 hours from a full wind. It's weird as it does not tighten and stop turning as it gets fully wound up. But the feel totally changes instead once full wound. You can feel that the winding is not having an effect on the spring anymore. My understanding of the modded 7750 is that it should not "stop" like a true manual wind movement. Manual winds you wind until they stop and you're done. With the a7750s, you wind until around the range it would stop. Try winding to 50 winds and see if that gives you any more juice on the PR. My 6263 is a Seagull ST19 and it takes about 50-60 for a full wind. Quote Link to comment Share on other sites More sharing options...
freddy333 Posted September 28, 2009 Report Share Posted September 28, 2009 Like all auto-winds, the mainspring will begin to 'slip' inside the barrel (the metal container that holds the spring) once it is fully-wound. Removing the auto-wind rotor (or assembly) does not turn a 7750 into a (manual-wind) 7760, it just removes the auto winding functionality. If you wind the watch 40 turns, it should run for at least 36 hours. If it stops before that, the movement requires service. Quote Link to comment Share on other sites More sharing options...
slickdick Posted September 28, 2009 Report Share Posted September 28, 2009 Problem with these automatics by design is they don't like to be manually wound. Ratios on these types are designed to give it a fast jump-start. The zigmaster did some explaining about this issue, however can't seem to find the post anymore. Quote Link to comment Share on other sites More sharing options...
theblueprince Posted September 28, 2009 Report Share Posted September 28, 2009 (edited) Ah i get it now. In answer to question above, mine is 7760, all the Rotor and associated gears removed. Edited September 28, 2009 by TheBluePrince Quote Link to comment Share on other sites More sharing options...
freddy333 Posted September 28, 2009 Report Share Posted September 28, 2009 Problem with these automatics by design is they don't like to be manually wound. Ratios on these types are designed to give it a fast jump-start. The zigmaster did some explaining about this issue, however can't seem to find the post anymore. The problem you are referring to is the (high) rate of speed of the auto-wind gearing when an auto-wind movement is manually-wound. Of course, this is a non-issue when the auto-wind components themselves have been doffed, as is the case here. Quote Link to comment Share on other sites More sharing options...
slickdick Posted September 28, 2009 Report Share Posted September 28, 2009 The problem you are referring to is the (high) rate of speed of the auto-wind gearing when an auto-wind movement is manually-wound. Of course, this is a non-issue when the auto-wind components themselves have been doffed, as is the case here. I stand corrected, thanks for clarifying. Quote Link to comment Share on other sites More sharing options...
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