How accurate is your Omega?

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My 3861 has lost 13 seconds in the past 16 days so I can’t complain. I think a few seconds of the 13 was down to me not wearing one of those days so I didn’t wind it up for about 36 hours
 
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FOIS = between -1 / +2 depending on time on wrist. It has held that accuracy since it was regulated early in its life. Compares favourably with my SMP Diver 8800 and a bit better overall than an AT 41 8900.

Doesn't hack of course, but then neither do I.

 
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I decided to track my accuracy back in October because when I paid strict attention it seemed to be losing time (I'll always prefer to gain time rather than lose). So, on 10/17 I set my watch a minute ahead and checked to see how much it had lost or gained almost every day until 11/28. Most days it lost a second, some days nothing. Over that span of time it lost 21 seconds, or an average of .5 per day.

I reset it and started tracking again on 11/29 until today. There were a couple occasions it gained a second or two this time around. It has lost 36 seconds through round two, or an average of .7 per day. Although I would prefer it to be fast instead of slow, averaging -.5 to -.7 per day is quite remarkable. I wear it to work every day, and part of each day on the weekends. Resting position each night was dial up.
 
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FOIS = between -1 / +2 depending on time on wrist. It has held that accuracy since it was regulated early in its life. Compares favourably with my SMP Diver 8800 and a bit better overall than an AT 41 8900.

Doesn't hack of course, but then neither do I.

May I ask what sort of accuracy you were getting before it was regulated? My FOIS is currently running at +8 to +9 seconds a day when worn during the day and resting dial up overnight. If I rest it crown down overnight, it runs at just over +6 seconds a day. I'm tempted to take it back to Omega to get it re-regulated (it's still under warranty). Or I may get them to do it at its first service.
 
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Well, my old sub second, cal 265 does quite well given that i don't even know the service history
Not to bad for an old vintage model
 
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Speedy Pro 3570.50 - not happy with accuracy at all - gaining at least 30 sec a day. I tried to adjust a bit yesterday, fingers crossed I got the right direction of the screw 😀
 
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Speedy Pro 3570.50 - not happy with accuracy at all - gaining at least 30 sec a day. I tried to adjust a bit yesterday, fingers crossed I got the right direction of the screw 😀
Sounds like your watch could be magnetised. My Speedy FOIS was behaving the same way a couple of years ago. Bought a cheap demagnetizer off eBay and gave it a run. Fixed it straight away.
 
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My 3861 Speedy is running at an about +1spd on my timegrapher. Its the most accurate watch I own.
 
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Sounds like your watch could be magnetised. My Speedy FOIS was behaving the same way a couple of years ago. Bought a cheap demagnetizer off eBay and gave it a run. Fixed it straight away.
I may try this actually. Thank you.
 
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Had my new Moonwatch now for 9 days - it looks to have gained 1 to 2 seconds over that period so very pleased. At I lucky or is that expected with 3861?
 
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My basic skills at the timegrapher indicate 0 +\- at 49 lift angle for my new Mark 40 (1152 cal).
 
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My basic skills at the timegrapher indicate 0 +\- at 49 lift angle for my new Mark 40 (1152 cal).
lift angle is 50 degrees on the 1152, but having the wrong lift angle will only affect the amplitude reading, and not affect the rate you are reading.

I recently got a 3861 and Its consistently 5 seconds fast, which I guess while its in spec for the metas certification, I must admit to being slightly disappointed, but I have been really spoiled by a spring drive GS so maybe i need to reset my expectations a bit...
 
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lift angle is 50 degrees on the 1152, but having the wrong lift angle will only affect the amplitude reading, and not affect the rate you are reading.

I recently got a 3861 and Its consistently 5 seconds fast, which I guess while its in spec for the metas certification, I must admit to being slightly disappointed, but I have been really spoiled by a spring drive GS so maybe i need to reset my expectations a bit...

Thanks for the feedback. I’ve looked at several online resources that were all consistent about the lift angle for the 1152/7750. Which source do you recommend?
 
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Not that big of a deal, but I’m fairly certain even UK watch guy says it’s 49°
 
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Not that big of a deal, but I’m fairly certain even UK watch guy says it’s 49°

You can believe Christian if you like, but I'll take Omega's word for it...

 
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You can believe Christian if you like, but I'll take Omega's word for it...

Thanks.
 
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Not that big of a deal, but I’m fairly certain even UK watch guy says it’s 49°
I didn't realise he had a database of lift angles, I was linking you to the omega manuals pdf's where it lists 50 degrees.
 
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I didn't realise he had a database of lift angles, I was linking you to the omega manuals pdf's where it lists 50 degrees.
No big deal at all. Just curious about the variance…