How accurate is your Omega?

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My 2019 Aqua Terra 42mm runs +/0.3 seconds a day. It's insanity how accurate this watch is.
 
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True but it can only go downhill from here.
Well, yes, at some point it will require servicing. They never go back together in exactly the same way they came apart. Just a fact of life.
 
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RPC RPC
I’m kind of bummed with the accuracy of my Speedmaster.

I received a couple of months ago as a 40th birthday present and, even though it’s within spec, +9 seconds a day is enough to make it in accurate within a week.

I tried all of the different resting positions overnight and +9.5 spd is the best I’ve gotten, and that’s either dial down or crown down.

You can always get it adjusted for wear. That's something reasonable to do.
 
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Currently I have two Omegas. The 2900.50.81 Planet Ocean with the 2500C movement which had Omega service a few years ago and it is a sold +5 sec/day. My other watch is a Speedmaster 311.30.42.30.01.005 manual wind 1861. Always runs fast but its a range +9 to +12 seconds. Not sure how accurate they could get this when it comes time for service. Been that way since I owned it.
 
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Since this thread was resurrected, I started keeping track of the accuracy of my new 3861 Speedmaster.

I used time.gov exactly one week ago (2/28/2021) to set it and right now, it’s showing overall +2 seconds compared to the same source.

I wear it all day, every day and only take it off to sleep. While on the dresser at night, it’s lying flat, dial up.

Needless to say, I’m very impressed with this watch.
 
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You can always get it adjusted for wear. That's something reasonable to do.

Is adjusting something my AD can do?
 
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RPC RPC
Is adjusting something my AD can do?
I don't know but that is the place to start. You don't want to void your warranty, necessarily, by having any random joker opening your watch and poking inside.

The key is to be polite. "I've been keeping track and my watch averages 11 seconds fast per day. Can that be adjusted lower?" Any kind of demand will result in a quoting of the specs and being shown the door.
 
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Well, yes, at some point it will require servicing. They never go back together in exactly the same way they came apart. Just a fact of life.
I can vouch for that. I've got a Seamaster Pro 2551.80 which when new back in 2005 was running 2-3s fast a day. When I finally got it serviced by Omega in mid 2017 (a bit naughty I know), it came back running 3-4 secs fast a day. Unfortunately, it developed other issues. In mid 2019 the date display kept getting stuck so had to get it sent back for fixing. Then a year later, the watch kept stopping even though it was on a winder. Thankfully all this got fixed at no cost under service warranty but I was very disappointed by this experience. Don't know if Rolex is any better. My SMP now is about 5-6s fast a day which is barely within COSC standards. Will get it serviced/regulated again once it goes outside these specs.
 
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My Speedmaster FOIS which I got new in 2019 has always been running about 7-8s fast a day, which I'm OK with as I wasn't expecting chronometer level accuracy. From what I've read on this forum the accuracy of 1861 powered watches can vary greatly. Most people seem to be getting +5 to +10 secs a day but a few have been lucky enough to get watches running at +2 secs a day from new. Very much luck of the draw and whether your watch was put together on a Friday afternoon 😉. To me it seems that as long as the watches leave the factory within specs (-1 to +10 spd) then it's good enough for Omega. They don't all have to be running exactly the same.
 
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RPC RPC
I’m kind of bummed with the accuracy of my Speedmaster.

I received a couple of months ago as a 40th birthday present and, even though it’s within spec, +9 seconds a day is enough to make it in accurate within a week.

I tried all of the different resting positions overnight and +9.5 spd is the best I’ve gotten, and that’s either dial down or crown down.

From watchtracker app:
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Is your Speedmaster powered by Caliber 1861 or is yours the latest one with Caliber 3861? If yours is a 1861 then it's just within specs. However, if it's a 3861 then it's well outside specs as it's supposed to be a METAS certified chronometer running between 0 to +5 secs a day. If its a 3861, then I'd just take it back to Omega to get it fixed under warranty.
 
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My Speedmaster FOIS which I got new in 2019 has always been running about 7-8s fast a day, which I'm OK with as I wasn't expecting chronometer level accuracy. From what I've read on this forum the accuracy of 1861 powered watches can vary greatly. Most people seem to be getting +5 to +10 secs a day but a few have been lucky enough to get watches running at +2 secs a day from new. Very much luck of the draw and whether your watch was put together on a Friday afternoon 😉. To me it seems that as long as the watches leave the factory within specs (-1 to +10 spd) then it's good enough for Omega. They don't all have to be running exactly the same.

They are all capable of +2 per day when they're new. As I said, if the timekeeping is +10, get it adjusted for wear.

When I owned a Speedmaster, I got it serviced when it no longer kept time +2. That they don't necessarily come that way from the factory doesn't mean you're forced to take it and STFU. You can always ask for an adjustment and if you're not a jerk about it, you'll likely get it.
 
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My 300m is running +1 per day, and my SMP is running +8 per day. Love them both!
 
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2016 SMP, +5 sec/day since I got it, no more no less, regardless of wear, position etc, etc. Happy with this consistency considering the abuse I put it through
 
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Not being facetious here, just adding some new info. to the thread...



I just did the third battery change since acquiring this watch, and it appears to be stabilizing to about +0.1 sec/day. Not bad for a 45-year old watch. On my last battery run (which typically goes for about 10 mos.) the watch averaged +0.5 sec/day so we'll see how things go in the longer term for this run.

Here's an interesting advert I found, which makes reference to the definition of a Marine Chronometer.

 
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Not being facetious here, just adding some new info. to the thread...



I just did the third battery change since acquiring this watch, and it appears to be stabilizing to about +0.1 sec/day. Not bad for a 45-year old watch. On my last battery run (which typically goes for about 10 mos.) the watch averaged +0.5 sec/day so we'll see how things go in the longer term for this run.

Here's an interesting advert I found, which makes reference to the definition of a Marine Chronometer.


That one is kind of cheating though, even if its one of the most amazing quartz models they’ve ever made. 2.4Mhz is a hell of a step up from anything else.
 
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That one is kind of cheating though, even if its one of the most amazing quartz models they’ve ever made. 2.4Mhz is a hell of a step up from anything else.

Yes, it's an amazing watch on many levels. Of the watches I own, this one seems to mean the most to me personally (aside from some marvellous watches gifted to me by Mrs.Jones). I feel like I'm one of a handful of special custodians of this bit of watchmaking history. I also worry about its longer-term care and maintenance. This is one of the watches that Omega will not accept for regular servicing due to lack of replacement parts...in effect it has been black-listed (although the list of prohibited watches is actually red on their internal list). I suppose the best I can do is let a trusted watchmaker clean and oil the mechanical bits and hope for the best on the electronic components.
 
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SMP -2.5/day whatever position it is in or resting in.
 
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Is your Speedmaster powered by Caliber 1861 or is yours the latest one with Caliber 3861? If yours is a 1861 then it's just within specs. However, if it's a 3861 then it's well outside specs as it's supposed to be a METAS certified chronometer running between 0 to +5 secs a day. If its a 3861, then I'd just take it back to Omega to get it fixed under warranty.

1863, so is within spec. I love it and wear it daily, hopeful that regular wear will positively influence accuracy over time.

If not I’ll have it addressed.
 
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Vintage Mark II Speedie (861), fully refurbished recently with NOS parts.
Averages +1 to +3s per day when worn and wound daily over a two week period or so.

Very happy with that.