morgan123 Posted March 6, 2007 Report Share Posted March 6, 2007 I couldn't find any topics on how exactly to calibrate one of my 7750's. It's about 1 hour slow off in a 24 hour period. It came this way. What to do? (thanks) Link to comment Share on other sites More sharing options...
RWG Technical Posted March 6, 2007 Report Share Posted March 6, 2007 1 hour is a huge amount of time to try and adjust... You should have a watchmaker check and verify the watch on a timing machine, the beat may be out. But it's unlikely that the beat is out enough to cause 1 hour of loss... the fact that it's loosing time, leads me to think it's a defect. Most likely, your problem is a slipping cannon pin, they tend to be defective on the 7750's, if when setting the time, you feel little to no resistance, you have a bad cannon pin. The fix is to replace the cannon pin. RG Link to comment Share on other sites More sharing options...
morgan123 Posted March 6, 2007 Author Report Share Posted March 6, 2007 Hi The Zigmeister! I think the post office is trying to deliver the Tag you sent back to me I guess if I want this one to work I'll have to send it to you too. Thanks! Link to comment Share on other sites More sharing options...
RWG Technical Posted March 6, 2007 Report Share Posted March 6, 2007 Hi Ziggy! I think the post office is trying to deliver the Tag you sent back to me I guess if I want this one to work I'll have to send it to you too. Thanks! Ok, let me know. The cannon pin can be replaced alone, or you can choose to service it... RG Link to comment Share on other sites More sharing options...
hooky Posted May 21, 2008 Report Share Posted May 21, 2008 1 hour is a huge amount of time to try and adjust... You should have a watchmaker check and verify the watch on a timing machine, the beat may be out. But it's unlikely that the beat is out enough to cause 1 hour of loss... the fact that it's loosing time, leads me to think it's a defect. Most likely, your problem is a slipping cannon pin, they tend to be defective on the 7750's, if when setting the time, you feel little to no resistance, you have a bad cannon pin. The fix is to replace the cannon pin. RG Thanks, i just experienced this problem on my new 400usd Chopard rep. There was no resistance when setting time. And the the was 30 minutes in just less than half a day. Setting the adjustment bar a very tiny bit slower made it run also half an hour slower. And vica versa. Will send the watch back to our Chinese friends for repair and i can even explain to them what the problem and solution is. Great! Thanks a lot for the informative post. Gr, Hooky Link to comment Share on other sites More sharing options...
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