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tyler1980 · 5 July 2018, 10:16 PM

buy a watch with a battery if 2.5 seconds bothers you because clearly 2 seconds will bother you too. You are talking about 15 additional seconds a month and the watch is already -0.0035% from 100% accuracy.

samson66 · 5 July 2018, 10:20 PM

25 seconds, yes take it to RSC. 2.5 seconds??? Uh no...

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beshannon · 5 July 2018, 10:25 PM

Quote:

Originally Posted by Utomow

After two years of use my subc date runs -2.5s/day. I know that according to COSC this is within the range however as per spec the sub-c date should be within -+2s/day.

Should I take it to RSC or is there any other remedy? I tried to put it with its dial facing up during night time for couple of days but no result.

I would not as that is excellent accuracy

Rashid.bk · 5 July 2018, 10:25 PM

.5 seconds.....no.
First, make sure it's completely wound. I wind mine all the way every time I have to reset the date. Is you're watch a green seal watch, which guarantees the new standard?
Also, .5 seconds on Time.is can be the result of internet connection. When I want to spazz out and measure, I use multiple sources....my quartz Suunto, internet resource, atomic tuned watch and if you want to be sure pass by an AD to measure it's rate on that machine(I don't know the name of).
If we round up your 2.5 seconds up to be extreme...then it's losing 3 seconds a day and would be a little off but measuring over an average of two days isn't enough data to convince me that my watch has a problem.

Mechanical watches can be affected by many things, to include activity. I find that my watches run a bit fast when I'm running around all over the place.
With that in mind you said "after two years", which means it was fine and now over just two days it's deviated...I'd collect more data and try some trouble shooting first because if it bothers you that much it is very difficult to regulate a watch for .5 seconds...it may come back too fast....or worst, slower, and then there's all the time you'll be without it.
You may need a quartz if .5 seconds bothers you.

hai.tranhr · 5 July 2018, 11:31 PM

How you count it? I have no idea how to measure it.

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5 July 2018, 10:16 PM	#31
tyler1980 "TRF" Member Join Date: Apr 2015 Location: Houston Posts: 17,622	buy a watch with a battery if 2.5 seconds bothers you because clearly 2 seconds will bother you too. You are talking about 15 additional seconds a month and the watch is already -0.0035% from 100% accuracy. __________________ Instagram: tyler.watches current collection: Patek 5164A, Patek 5524G, Rolex Platinum Daytona 116506, Rolex Sea Dweller 43 126600, Rolex GMT II 116710LN, AP 15400ST (silver), Panerai 913, Omega Speedmaster moonwatch, Tudor Black Bay (Harrods Edition)

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5 July 2018, 10:20 PM	#32
samson66 2024 ROLEX SUBMARINER 41 Pledge Member Join Date: Jul 2013 Real Name: Mike Location: Downy Ocean Hon Watch: my money leaving! Posts: 13,793	25 seconds, yes take it to RSC. 2.5 seconds??? Uh no... Sent from my Samsung Galaxy S7 Edge using Tapatalk

5 July 2018, 10:25 PM	#34
Rashid.bk "TRF" Member Join Date: Jan 2009 Location: Dallas Watch: 12800ft = 3900m Posts: 11,173	.5 seconds.....no. First, make sure it's completely wound. I wind mine all the way every time I have to reset the date. Is you're watch a green seal watch, which guarantees the new standard? Also, .5 seconds on Time.is can be the result of internet connection. When I want to spazz out and measure, I use multiple sources....my quartz Suunto, internet resource, atomic tuned watch and if you want to be sure pass by an AD to measure it's rate on that machine(I don't know the name of). If we round up your 2.5 seconds up to be extreme...then it's losing 3 seconds a day and would be a little off but measuring over an average of two days isn't enough data to convince me that my watch has a problem. Mechanical watches can be affected by many things, to include activity. I find that my watches run a bit fast when I'm running around all over the place. With that in mind you said "after two years", which means it was fine and now over just two days it's deviated...I'd collect more data and try some trouble shooting first because if it bothers you that much it is very difficult to regulate a watch for .5 seconds...it may come back too fast....or worst, slower, and then there's all the time you'll be without it. You may need a quartz if .5 seconds bothers you.

5 July 2018, 11:31 PM	#35
hai.tranhr "TRF" Member Join Date: Jun 2018 Location: Ho Chi Minh Posts: 230	How you count it? I have no idea how to measure it. Sent from my iPhone using Tapatalk

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