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Old 13 June 2022, 12:50 AM   #1
Dobbert
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Accuracy

My day date bought brand new from a large AD runs 3:8 seconds fast. I sent it away for repair to Rolex via the AD and it came back 3:8 seconds fast. Should I try again or accept this time deviancy isnít too bad?
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Old 13 June 2022, 01:09 AM   #2
AkshayArgade
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my sub is 3 seconds slow per day consistently.

datejust is 2 seconds fast per day consistently

another datejust is 1-2 seconds fast per day consistently

I've learnt to live with it-- if it aint broke don't fix it.

unless either of these watches stops working / starts acting up etc, I won't service them.

my advice would be to live with it.. its a mechanical piece ,, enjoy it.
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Old 13 June 2022, 01:11 AM   #3
saxo3
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Accuracy

Quote:
Originally Posted by Dobbert View Post
My day date bought brand new from a large AD runs 3:8 seconds fast. I sent it away for repair to Rolex via the AD and it came back 3:8 seconds fast. Should I try again or accept this time deviancy isnít too bad?
Welcome To The Pleasure Dome ;-)
I would not send it in again for regulation.
Accuracy depends on many parameters.
Try different rest positions (dial up, dial down, 3 up, 6 up, 9 up) overnight and determine its influence on timekeeping.
One can also check rates with a timegrapher.
Start with full winding of the movement.
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Old 13 June 2022, 08:24 AM   #4
watchmavan
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Quote:
Originally Posted by Dobbert View Post
My day date bought brand new from a large AD runs 3:8 seconds fast. I sent it away for repair to Rolex via the AD and it came back 3:8 seconds fast. Should I try again or accept this time deviancy isnít too bad?

Superlative Chronometer on a newer Rolex means +\-2 seconds. This is tested in 5 positions though and real time testing while accurate for you may/probably not be accurate. I just back my 1999 Polar 16570. I haven't put it on the Timegrapher yet but real time testing last week has it at -0.3.
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Old 22 June 2022, 04:22 PM   #5
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Originally Posted by Dobbert View Post
My day date bought brand new from a large AD runs 3:8 seconds fast. I sent it away for repair to Rolex via the AD and it came back 3:8 seconds fast. Should I try again or accept this time deviancy isnít too bad?
Sounds like they did nothing with the watch.

Insist on the watch being regulated to within -2/+2.
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Old 22 June 2022, 07:13 PM   #6
watchmaker
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Sounds like they did nothing with the watch.

Insist on the watch being regulated to within -2/+2.
Not necessarily. A watch can average +-2sd and still produce a real world gain of 3.8sd.

I would try leaving the watch overnight in the opposite position from what the OP is currently doing.

ie If he rests it crown up overnight, try crown down.
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Old 23 June 2022, 08:33 AM   #7
amanbra
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I'd happily accept 4s per day. In fact one of my daytonas is closer to 5 per day and there is no way I'd have it opened up because of that.
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Old 23 June 2022, 04:50 PM   #8
lennywilkins
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Not necessarily. A watch can average +-2sd and still produce a real world gain of 3.8sd.

I would try leaving the watch overnight in the opposite position from what the OP is currently doing.

ie If he rests it crown up overnight, try crown down.
I don't disagree, however IMO it is too coincidental that it's running precisely the same as it was before.
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Old 23 June 2022, 05:43 PM   #9
padi56
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Quote:
Originally Posted by lennywilkins View Post
Sounds like they did nothing with the watch.

Insist on the watch being regulated to within -2/+2.
They could regulate on a machine to -2+2 seconds but on the wrist could be slightly different as there are many many variables.Remember this the escapement of a mechanical watch in 24 hours pushes the gears 432,000 times and a day has 86,400 seconds, so even 3.8 seconds is not life threatening.Now on the wrist the movement is constantly affected by the earth's gravity,mainspring power-reserve, metal expansion and contraction, temperature variations, subtle changes in lubrication and friction, shocks, and so on.The fact is that no mechanical watch made will keep 100% perfect time, very close yes but perfect no.
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Old 23 June 2022, 06:38 PM   #10
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I don't disagree, however IMO it is too coincidental that it's running precisely the same as it was before.
I don't think we've heard enough from the OP to conclude anything from what they have said.

How have the measured the timekeeping? In how many positions? For how long?

It's very possible Rolex did do nothing to the watch because there is nothing wrong with it
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Old 28 June 2022, 03:07 AM   #11
saxo3
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Accuracy

OP disappeared after his first post?
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