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#1 |
"TRF" Member
Join Date: May 2011
Location: Calgary
Posts: 21
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Hi Guys,
What's an acceptable amount of seconds to lose on an automatic watch? MB |
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#2 |
"TRF" Life Patron
Join Date: Jun 2005
Real Name: Peter
Location: Llanfairpwllgwyng
Watch: ing you.
Posts: 52,766
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The COSC spec is a Average of between -4 and +6 seconds over any 24 hour period. But thats with a fully manually wound watch to start with, try resting watch while off wrist flat dial up might gain a few seconds over night.
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ICom Pro3 All posts are my own opinion and my opinion only. "The clock of life is wound but once, and no man has the power to tell just when the hands will stop. Now is the only time you actually own the time, Place no faith in time, for the clock may soon be still for ever." Good Judgement comes from experience,experience comes from Bad Judgement,.Buy quality, cry once; buy cheap, cry again and again. www.mc0yad.club Second in command CEO and left handed watch winder ![]() |
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#3 |
"TRF" Member
Join Date: May 2011
Location: Calgary
Posts: 21
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Great thank you. what amount should be cause for concern?
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#4 |
"TRF" Member
Join Date: Oct 2009
Location: Here and there
Posts: 12,485
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Rolex watches have a stricter standard of -1 to +5 seconds per day and hence the designation, "Superlative Chronometer Officially Certified" on the dial.
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Fine Quality is Long Remembered After the Pain of Spending Money is Forgotten |
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#5 |
"TRF" Member
Join Date: May 2011
Location: Calgary
Posts: 21
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thanks, this has been a great help.
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#6 |
"TRF" Life Patron
Join Date: Jun 2005
Real Name: Peter
Location: Llanfairpwllgwyng
Watch: ing you.
Posts: 52,766
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Not 100% true movements of the Rolex size are all tested to the same Swiss COSC standard.The wording "Superlative" in front of the official designation of Chronometer, is today merely a Rolex marketing ploy to give it a more distinguished sound to the chronometer status of their products. Any words added before or after the official designation of Chronometer are merely purely marketing,likewise the wording Certified Chronometer,is a redundant phrase word, since getting the Chronometer status is the certification,but the certification is only at the time of testing the bare uncased movement at COSC,the added certified on the dial is just more marketing to make it sound better.But many of the Rolex watch servicers will try and better or at least equal the Swiss COSC spec standard.
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ICom Pro3 All posts are my own opinion and my opinion only. "The clock of life is wound but once, and no man has the power to tell just when the hands will stop. Now is the only time you actually own the time, Place no faith in time, for the clock may soon be still for ever." Good Judgement comes from experience,experience comes from Bad Judgement,.Buy quality, cry once; buy cheap, cry again and again. www.mc0yad.club Second in command CEO and left handed watch winder ![]() |
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#7 |
"TRF" Member
Join Date: Oct 2010
Real Name: Ari
Location: Florida
Watch: ...me go broke
Posts: 2,428
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You'll get lots of opinions on what is acceptable accuracy. I'd suggest you sync to an atomic clock source, then check it in exactly 7 days. Then divide by 7. If you've lost 20 seconds or less most would say it's acceptable. Some would say even 28 seconds or less is good, ie the bottom end of the COSC. It's up to you, losing four a day average is ok, it's good enough, the question is, is a watch that is good enough, but not spectacular, good enough for you?
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#8 |
Member
Join Date: Jun 2011
Location: vietnam
Posts: 113
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I adjust my sub 4 minutes faster
This way I will never be late, and I will never need to care about the variation of my sub , I cannot find any bad reason of adjust the watch faster ![]() ![]() |
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