How accurate is your Omega?

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I set my Speedmaster Professional to a time source six months ago.

I have not worn it or touched it.

It is now one second slow.

It's also stopped if you haven't worn or touched it...
 
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It's also stopped if you haven't worn or touched it...

Nup. Just checked it. Doing fine.
But I just pressed the light button and it went into 5 second jump mode so I guess it's time to change the battery.

Ed: And as I've had a wee dram of Dalwhinne 15YO I may just leave that task until tomorrow.

😁
 
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Nup. Just checked it. Doing fine.
But I just pressed the light button and it went into 5 second jump mode so I guess it's time to change the battery.

Can we see a photo of this watch perhaps?
 
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Note that it’s still on AEDST.
 
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I've had my Seamaster 300M for 18 months now and have been astounded at its accuracy from a mechanical movement, about .3 sec a week gain (job to tell!) sort of thing I would have expected from a quartz movement!


That's phenomenal
 
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I only have one Omega...a modern Speedy Gonzales Moonwatch [my grail watch] that I received new in 2015...at that time [and for a few years] it ran about +2 to +3 seconds per 24 hours on the wrist and in a dial up off-the-wrist position. Over the past year or so it appeared to be running about +10 to +15 seconds per 24 hours on the wrist and in a dial up off-the-wrist position. Well...I like to dork with stuff that “ain’t really broke”...so I opened her up with my handy-dandy green gripper ball and ever-so-slightly manipulated the regulator screw to run a wee bit slower. The very slight regulator screw manipulation seems to have been successful and it’s been running about +1 to +3 seconds per 24 hours on the wrist and in a dial up off-the-wrist position for several weeks now. 👍

 
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My 1861 runs +5 per day, happy with that for a mechanical watch. Twice a week maybe I’ll reset the second hand which gives me the opportunity to admire it in more detail 😁
 
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Less than +1 sec a day on a new 8900 PO
Worn during day, crown down at night. More accurate than the METAS results.
More accurate than I had expected.....so far.
 
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15 days now still going strong and at a total of +4.5 seconds (+0.2 second per day)
 
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my FOIS runs an average 3.5 seconds fast a day. Tested over several months with different amounts of usage and store in a watch box face up when no used.
 
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After a proper service, my 1956 Seamaster runs 3.5 seconds fast per day. Love having both the vintage charm and the modern accuracy!
Edited:
 
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Since I've owned it my DSOM has gained around 2/3 seconds a month. I am hugely impressed with that and the watch in general.
 
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My Seamaster 300 2018 Wave Dial has been accurate to 0.08 seconds per day, not kidding. This is ridiculous! Lol!
 
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my Seamaster 300MC runs +36 sec for a week. Is it alright or need to be adjusted? It's average a 5 sec a day still within range of chronomast -4 and +6 sec, though..