smc Posted August 15, 2009 Report Share Posted August 15, 2009 Awesome watch - however... The 24H hand is gaining 6-8 hours a day! Any ideas? smc Link to comment Share on other sites More sharing options...
Justasgood Posted August 15, 2009 Report Share Posted August 15, 2009 Awesome watch - however... The 24H hand is gaining 6-8 hours a day! Any ideas? smc Are you sure? Link to comment Share on other sites More sharing options...
smc Posted August 15, 2009 Author Report Share Posted August 15, 2009 Yup, set all hands to midnight and by 8 pm the 24h hand was at 12. Otherwise the watch is running 3 seconds fast. Link to comment Share on other sites More sharing options...
freddy333 Posted August 15, 2009 Report Share Posted August 15, 2009 I do not know enough about how the GMT hand functions on the CHS version (which I also own, but never disassembled, per Ziggy's comments), but you might have the watch demagnetized. Generally, if a watch is running very fast (+hours/day), the coils of the hairspring are probably stuck together which greatly speeds-up its rotational movement, which, in turn, causes the watch to run very fast. Failing that, the only other thing I can recommend is to pull the stem out to the time-setting position & run it forward through a complete 24-hour cycle. Then, run the hour hand through a complete 24-hour cycle & see if the GMT hand then runs correctly. Link to comment Share on other sites More sharing options...
BROM Posted August 15, 2009 Report Share Posted August 15, 2009 Yup, set all hands to midnight and by 8 pm the 24h hand was at 12. Otherwise the watch is running 3 seconds fast. So the hour hand ran for 20 hours from midnight to the 8 pm position while the GMT hand only traveled 12 hrs to the 12 o'clock position on the bezel is that correct? If that is the case the GMT hand lost 8 hrs or gained 16 hrs. Link to comment Share on other sites More sharing options...
smc Posted August 15, 2009 Author Report Share Posted August 15, 2009 I set all the hands to 12 (at midnight) before I went to bed. When I woke up at 6, the 24h hand was at 4 on the dial - 8 on the bezel. By noon, the 24h hand was somewhere around 14-15. By 8pm, the 24h hand was nearing 24(12 on the dial). The normal hour and minute hands seem to be working correctly. Link to comment Share on other sites More sharing options...
kbh Posted August 15, 2009 Report Share Posted August 15, 2009 Mine does the same thing. I've had if worked on twice and the GMT hand has never been accurate. I've given up on it. Link to comment Share on other sites More sharing options...
TeeJay Posted August 15, 2009 Report Share Posted August 15, 2009 If you go on CQout, you can get a GMT Master II for £28 shipped... Buy one and use it as a donor for the movement Might not have the correct hand stack, but it would at least run solidly with the regular hands Best of luck Link to comment Share on other sites More sharing options...
BROM Posted August 16, 2009 Report Share Posted August 16, 2009 I set all the hands to 12 (at midnight) before I went to bed. When I woke up at 6, the 24h hand was at 4 on the dial - 8 on the bezel. By noon, the 24h hand was somewhere around 14-15. By 8pm, the 24h hand was nearing 24(12 on the dial). The normal hour and minute hands seem to be working correctly. Try this set them at all hands at 12 pm then put the crown back in after its start running then pull the crown all the way out and forward the time for about two days that is what I did to one of my gmt omegas and afterwards started keeping track as normal. I do not know if it will work with the one you have because the handstack is different on the omega I think. Link to comment Share on other sites More sharing options...
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