Atomic Clock vs Omega Watch

Posts
16
Likes
3
I wanted to get a thread going on accuracy. This is a simple test and I wanted to see what others are getting.

I received my watch( 2016 Planet Ocean GMT) a few months ago. It has not been run down since. I set it against time.gov to the second. I am getting a about +3-4 seconds a day.

What are you all getting?
 
Posts
8,269
Likes
19,493
Seems the Atomic clock is running slow again these days! Don't worry, Government engineers will make the necessary adjustments before the year ends.

馃槣
 
Posts
369
Likes
507
Mechanical watches are "iffy" things, usually very position sensitive. My Speedmaster (NOT chronometer certified) runs +3-5 a day when worn, a bit more when kept wound in my watch box face up. My Seamaster (COSC & METAS certified) runs +5 a day when worn, haven't checked it otherwise. I use the NIST Time Widget as a reference. I think most here will relate similar results. You can make yourself crazy tracking mechanical watch accuracy. My 262mhz (a temperature compensated quartz) Bulova Lunar Pilot looses about 1 second in 3 months, worn or unworn. I will undoubtedly compound the craziness by buying a Timegrapher. I think you are getting excellent accuracy from your PO, try to just relax and enjoy it!
 
Posts
33
Likes
43
I wanted to get a thread going on accuracy. This is a simple test and I wanted to see what others are getting.

I received my watch( 2016 Planet Ocean GMT) a few months ago. It has not been run down since. I set it against time.gov to the second. I am getting a about +3-4 seconds a day.

What are you all getting?

https://www.nist.gov/news-events/news/2019/07/nists-quantum-logic-clock-returns-top-performance

I like the compactness of my 2018 Diver 300M compared to NIST鈥檚 quantum logic clock. Just can鈥檛 envision a proper strap for it. 馃槈
 
Posts
1,444
Likes
2,221
https://www.nist.gov/news-events/news/2019/07/nists-quantum-logic-clock-returns-top-performance

I like the compactness of my 2018 Diver 300M compared to NIST鈥檚 quantum logic clock. Just can鈥檛 envision a proper strap for it. 馃槈

Meh. If you're going to spend the big bucks on a quantum logic clock, may as well invest in a bracelet.

My concern is with resale -- quick perusal of the usual sites suggest that you're losing a good chunk of that ion-trap lattice clock's value the second you leave the laboratory.
 
Posts
477
Likes
489
I predict that the atomic clock will win. 馃榿

Depends of the criteria. If it is accuracy only, then atomic clock wins. If it is wearability, then... well... I don't see me wearing an atomic clock on my wrist 馃榿
 
Posts
792
Likes
919
My SMPO Chrono, which is COSC gets +2 day in and day out. My Speedmaster '57 gets -4 day in and day out. All against a GPS source.
 
Posts
1,787
Likes
2,000
An atomic clock must be viewed in reality, not down the internet. The internet will distort the reality.
Equivalent to viewing an artwork through the internet, just not the same as reality.

Since the new PO is on your wrist, it is the reality.
 
Posts
18,249
Likes
27,588
All PO鈥檚 are COSC, newer ones are METAS.
 
Posts
102
Likes
162
Even a cheap quartz watch would be more accurate than most mechanical watches.
 
Posts
2,808
Likes
8,340
My Ti Planet Ocean 9300 has gained 50 seconds in the past 28 days (but 20 of those seconds were in just the last 10 days). So it's running between 1.6 sec/day to 2.0 sec/day, averaging +1.8 sec/day.

During the same past 4 weeks, I did wear my Rolex ceramic Pepsi GMT II for 3.5 days at the beginning of November, and it only lost 0.3 sec total during that time.