Can changing the date have affected the timing of my Aquaterra?

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I guess my point is that the OP could give it a few months to see if it settles down, then have it regulated. It's entirely possible that the watch may stabilize in that time. If it's still unstable after 4-6 months, then yes, send it back. But I'd cut 'em some slack. Just my opinion.

I hear people mentioning watches "settling in" a lot, but none of my watches have ever changed over time. Thats gotta be a myth.
 
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absolutely false. automatic watch should stay fully wound under normal conditions.
The main reason for my regular winding of my watch prior to reading hronists' post was that I had noticed that, after winding, the watch would keep good time for a few days, but would begin to lose greater amounts of time with each passing day, leading me to suspect that the watch was running down. As soon as the watch was more than one minute out, I would reset and rewind it.
Since last being fully wound on 04/11, I have logged the timings as follows:
+1s, 0s, -8s, -27s, -76s, -98s, -115s, reset time on 11/11, -70s, -97s, 126s, -210s, watch stopped on 16/11.
When I got the watch back from Omega at the end of August, it only lost 59s in 13 days. Now it stopped completely after 12 days.
I'm going to take my watch back to the jeweler's and ask them to send it back to Omega.
I'll keep you informed of any developments...
 
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If the watch stops after a few days even though you are wearing it, then the winding system is not sufficiently activated by your arm movement. It could be either a genuine problem with the winding system efficiency, or a mismatch with your particular activity level/movement pattern. In either case, winding it manually every morning (or evening, or whenever, but consistently at the same time) should tell you whether something is wrong with the watch beyond the automatic winding system.
 
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I do not think that my level of activity is too low to wind the watch, as I am a fairly active person. I also have a 1970's model Seamaster which is automatic and have not had any problems with it stopping.
 
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For goodness sake, stop cogitating on this matter. Return it to the AD and have it attended to!
 
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I hear people mentioning watches "settling in" a lot, but none of my watches have ever changed over time. Thats gotta be a myth.
I don't know, the 8800 I bought new in June ran 5-7 spd fast at first and now runs 0-2 spd fast, I'd call that settling in. Anything with moving parts/gears wears itself in.
 
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I don't know, the 8800 I bought new in June ran 5-7 spd fast at first and now runs 0-2 spd fast, I'd call that settling in. Anything with moving parts/gears wears itself in.

This all sounds very logical until you realize that the this magnitude of shift in average rate is nearly the entire tolerance for average rate. This would be a shift of 5 seconds in a watch with a tolerance of 0 to +6 seconds.
 
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Please, don't bother.


Really? If the thread annoys you in some way I recommend that you avoid it rather than leaving obnoxious comments for the OP.

I've found multiple pieces of good information in this thread.
Edited:
 
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This all sounds very logical until you realize that the this magnitude of shift in average rate is nearly the entire tolerance for average rate. This would be a shift of 5 seconds in a watch with a tolerance of 0 to +6 seconds.
I'm not going to argue with a watch maker. 😀

All I can tell you is I compare my 300m to a digital app every evening at 10pm, it was always 5 - 7 spd fast every night, and is now always 0 to sometimes 2 spd fast every night.
 
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I'm not going to argue with a watch maker. 😀

All I can tell you is I compare my 300m to a digital app every evening at 10pm, it was always 5 - 7 spd fast every night, and is now always 0 to sometimes 2 spd fast every night.

Not saying that you aren't seeing what you are seeing, just that the proposed reasoning for it is a bit sus...
 
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the 8800 I bought new in June ran 5-7 spd fast at first and now runs 0-2 spd fast.
Putting aside how much time change you're seeing and if it's within the expected tolerance... I'm curious if other daily factors could play a role in that difference. Since the position a watch is kept in plays a role in it's timing and I spend my weekdays at a desk typing on a keyboard (watch face pointing up) would I see a different variation in timing on the weekends (crown facing down)? Is there something you were doing in June that's different than how you spend your time today?
 
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Putting aside how much time change you're seeing and if it's within the expected tolerance... I'm curious if other daily factors could play a role in that difference. Since the position a watch is kept in plays a role in it's timing and I spend my weekdays at a desk typing on a keyboard (watch face pointing up) would I see a different variation in timing on the weekends (crown facing down)? Is there something you were doing in June that's different than how you spend your time today?
I noticed the few times I left it face up overnight that it would gain about 7 seconds by morning, so I stopped doing that, and 10+ seconds over 24 hours. I don't keep it in my watch box for this reason. Always crown down when I'm not wearing it.