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lailai · 25 June 2009, 12:51 AM

I've got a used GMTIIc (V series) 2 months ago, once I got it I noticed that it about -4sec/day.But after wearing it for 2 weeks, I found that it slow down from -5sec , -6sec and right now it is -7sec/day !
Does anyone has such a problem like mine ?
I think I'll have to send it to inspect at the service center recently !

Thanks....

kcmo · 25 June 2009, 01:05 AM

It can take a while for a new watch to 'settle'. If yours is still running outside of COSC specs after a month I'd suggest you have it regulated.

padi56 · 25 June 2009, 01:06 AM

Just wear and enjoy your watch try resting your watch flat dial up at night when off your wrist could gain a few seconds back.Dont be too eager to get the back of for regulation,give it a bit more time,there will be some slight daily deviations.Try this give your watch a full manual wind 40 crown turns,set watch with a reliable time source.Then wear as normal,check watch daily with same setting time source then average it out loss or gain over a week.If then out of COSC spec average of -4 +6 a day perhaps have it regulated but a lot of things effect mechaical watches.Such as the movement is constantly effected by gravity, 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 perfect time,very close yes but perfect no.

GMTJOHNNY · 25 June 2009, 12:20 PM

I keep mine in COSC by taking it off at night and leaving it FACE DOWN. It will gain seconds during the night. As the mainspring winds down, the watch will tend to gain seconds so night time is fine to do it. The above comments are all in line perfectly too and try them first!

Tools · 25 June 2009, 12:41 PM

If you consider that the initial base for your watch was -4 seconds... (as you stated initially)

Now after a couple of months it has settled and now is at -7 seconds... that is a change of (or differential of) only 3 seconds.........well within COSC standards..

Your only issue, on this precise watch, it that it is out of regulation..

Get it regulated and it should run within the 3 seconds you now see of whatever base the watchmaker sets it at...

Watchdog · 25 June 2009, 01:28 PM

I think the OP is saying--well, I know he wrote--that it is "-7sec/day."

If it is losing 7 seconds a day, that is out of COSC tolerance, and I would have it checked.

StarSovereign · 25 June 2009, 01:33 PM

Odd, mine's at about +-3 right now. I haven't had it that long now, about a month or so. I hope I don't hav the same problem. I'd send it in, but it maybe you should give it another month to settle in.

25 June 2009, 12:51 AM	#1
lailai "TRF" Member Join Date: May 2009 Location: Bangkok Posts: 2	GMT IIc -7sec/day I've got a used GMTIIc (V series) 2 months ago, once I got it I noticed that it about -4sec/day.But after wearing it for 2 weeks, I found that it slow down from -5sec , -6sec and right now it is -7sec/day ! Does anyone has such a problem like mine ? I think I'll have to send it to inspect at the service center recently ! Thanks....

25 June 2009, 01:06 AM	#3
padi56 "TRF" Life Patron Join Date: Jun 2005 Real Name: Peter Location: Llanfairpwllgwyng Watch: ing you. Posts: 53,022	Just wear and enjoy your watch try resting your watch flat dial up at night when off your wrist could gain a few seconds back.Dont be too eager to get the back of for regulation,give it a bit more time,there will be some slight daily deviations.Try this give your watch a full manual wind 40 crown turns,set watch with a reliable time source.Then wear as normal,check watch daily with same setting time source then average it out loss or gain over a week.If then out of COSC spec average of -4 +6 a day perhaps have it regulated but a lot of things effect mechaical watches.Such as the movement is constantly effected by gravity, 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 perfect time,very close yes but perfect no. __________________ 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

25 June 2009, 12:20 PM	#4
GMTJOHNNY "TRF" Member Join Date: Dec 2007 Real Name: John Location: LONG ISLAND, NY Watch: 2007 DAY DATE 18KT Posts: 1,378	I keep mine in COSC by taking it off at night and leaving it FACE DOWN. It will gain seconds during the night. As the mainspring winds down, the watch will tend to gain seconds so night time is fine to do it. The above comments are all in line perfectly too and try them first! __________________ ROLEX DAY DATE 118238 (2007) ROLEX DAY DATE 18238 (1997) ROLEX GMT 16750 PEPSI (1987) ROLEX AIR KING 14000 (1991) ROLEX GMTIIC TT 116713LN (2008)

25 June 2009, 12:41 PM	#5
Tools TRF Moderator & 2024 SubLV41 Patron Join Date: May 2007 Real Name: Larry Location: Mojave Desert Watch: GMT's Posts: 43,490	If you consider that the initial base for your watch was -4 seconds... (as you stated initially) Now after a couple of months it has settled and now is at -7 seconds... that is a change of (or differential of) only 3 seconds.........well within COSC standards.. Your only issue, on this precise watch, it that it is out of regulation.. Get it regulated and it should run within the 3 seconds you now see of whatever base the watchmaker sets it at... __________________ (Chill ... It's just a watch Forum.....) NAWCC Member

25 June 2009, 01:05 AM	#2
kcmo "TRF" Member Join Date: Jan 2007 Real Name: Karis Location: USA Posts: 19,377	It can take a while for a new watch to 'settle'. If yours is still running outside of COSC specs after a month I'd suggest you have it regulated.

25 June 2009, 01:28 PM	#6
Watchdog "TRF" Member Join Date: Feb 2009 Real Name: Junkyard Dog Location: The Doghouse Watch: I can't tell time Posts: 6,815	I think the OP is saying--well, I know he wrote--that it is "-7sec/day." If it is losing 7 seconds a day, that is out of COSC tolerance, and I would have it checked.

25 June 2009, 01:33 PM	#7
StarSovereign "TRF" Member Join Date: Apr 2009 Real Name: Erik Location: Bay Area, CA Watch: 116234, 116710LN Posts: 936	Odd, mine's at about +-3 right now. I haven't had it that long now, about a month or so. I hope I don't hav the same problem. I'd send it in, but it maybe you should give it another month to settle in.

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