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swisscottg · 1 September 2009, 02:55 PM

Had my GMT IIc for about six months. it seems to be incredibly accurate. Loses maybe 10 secs a month.

How's your timekeeping on this watch?

KKB · 1 September 2009, 03:02 PM

Around -0.75. Unbelievable!

mldaytona · 1 September 2009, 03:30 PM

mine goes + 0.3 sec/day....it's simply amazing.

Flyjet601 · 1 September 2009, 05:43 PM

Everyone else now is early or late.....

jayong · 1 September 2009, 06:10 PM

Not as good as your GMT IIcs, I'm afraid. I've owned it since the beginning of July, and it's down 80 seconds, so around -1.3 seconds per day. But I can live with that.

padi56 · 1 September 2009, 06:42 PM

I have a 1982 5513 thats been consistent +1 a day for the last 20 plus years.And even by todays standards most modern day wristwatch chronometers are by the almost 300 year old 18th century navigational standards imposed on John Harrison H4 watch quite laughably inaccurate .How about just 5 seconds slow after 63 days at sea,in one of the toughest environments known to man, not bad for a almost 300 year old watch.The fact is all Rolex movements over the last 40 years have shown incredible accuracy and longevity of life to be called chronometers.And as long as any movement Rolex or others can perform to a accuracy of around 99.994% to 99.999%. What more could anyone ask from any mechanical watch.

topgun · 1 September 2009, 06:47 PM

about -2.00sec per day, still not bad

joeyk · 1 September 2009, 06:56 PM

+1 sometimes -1 consider very good i think ;)

swatty · 1 September 2009, 07:08 PM

-3/day

PBW · 1 September 2009, 09:39 PM

-3/day too

Gaijin · 1 September 2009, 09:42 PM

Supremely accurate! Best Rolex I have!

mike · 1 September 2009, 09:42 PM

Going on two years, mine has settled in to +1 a day.

clarencek · 1 September 2009, 09:45 PM

I don't have one any more, but when I did it was about +1 per day. Most accurate non-quartz watch I owned!

Wink · 1 September 2009, 10:56 PM

My Explorer II, which uses the same movement (3186) as the GMT, is -3 per day after about four months.

Wink

IT-guy · 1 September 2009, 11:31 PM

About -2 sec a day when in the winder. Better than that when on the wrist.

DATEJUSTSS · 2 September 2009, 02:27 AM

Mine's lost a 1/2 second over the last 3 weeks. I'd say that's pretty accurate.

Mathemagician · 2 September 2009, 03:08 AM

Started out at -6, settled in to -4ish, regulated to -1 and that's fine by me.

chiscoe · 2 September 2009, 03:43 AM

My gmtIIc - 2 secs / day

sexner · 2 September 2009, 04:24 AM

Quote:

Originally Posted by IT-guy

About -2 sec a day when in the winder. Better than that when on the wrist.

That tells me where the watch should be.

magnet_UK · 2 September 2009, 04:48 AM

-2 secs a day, 16 hours on the wrist and 8 hours face up when not

looking to buy · 2 September 2009, 05:00 AM

Had it six weeks. It is now around -2.3 seconds per day. I expect that to improve over time. It seems like after a few months they speed up slightly on average. Love the watch. Just had my sub calibrated. It is now +1.5 seconds per day.

sexner · 2 September 2009, 05:07 AM

Quote:

Originally Posted by looking to buy

Had it six weeks. It is now around -2.3 seconds per day. I expect that to improve over time. It seems like after a few months they speed up slightly on average. Love the watch. Just had my sub calibrated. It is now +1.5 seconds per day.

Sounds as though they are both running like the well-tuned machines that they are Bob.

Well done!!

scottkit · 2 September 2009, 05:57 AM

Owned for almost a year. Consistently 3-4 seconds slow a day. Wish it was better but it's ok.

1 September 2009, 02:55 PM	#1
swisscottg "TRF" Member Join Date: Sep 2007 Location: Bay Area, CA Posts: 11	GMT IIC Accuracy - How's yours? Had my GMT IIc for about six months. it seems to be incredibly accurate. Loses maybe 10 secs a month. How's your timekeeping on this watch?

1 September 2009, 03:02 PM	#2
KKB "TRF" Member Join Date: Apr 2009 Real Name: Eric Location: San Diego, CA Watch: GMTIIC Posts: 605	Around -0.75. Unbelievable! __________________ 116234 \| 116710 \| OMEGA 2551.80 \| Reverso GMT

1 September 2009, 05:43 PM	#4
Flyjet601 "TRF" Member Join Date: Sep 2006 Location: Hong Kong Watch: All of them Posts: 2,789	Very good.... Everyone else now is early or late..... __________________ I used to be indecisive, now I'm not sure

1 September 2009, 06:42 PM	#6
padi56 "TRF" Life Patron Join Date: Jun 2005 Real Name: Peter Location: Llanfairpwllgwyng Watch: ing you. Posts: 53,063	I have a 1982 5513 thats been consistent +1 a day for the last 20 plus years.And even by todays standards most modern day wristwatch chronometers are by the almost 300 year old 18th century navigational standards imposed on John Harrison H4 watch quite laughably inaccurate .How about just 5 seconds slow after 63 days at sea,in one of the toughest environments known to man, not bad for a almost 300 year old watch.The fact is all Rolex movements over the last 40 years have shown incredible accuracy and longevity of life to be called chronometers.And as long as any movement Rolex or others can perform to a accuracy of around 99.994% to 99.999%. What more could anyone ask from any mechanical watch. __________________ 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

2 September 2009, 04:48 AM	#20
magnet_UK "TRF" Member Join Date: Oct 2008 Real Name: Simon Location: U.K. Posts: 253	-2 secs a day, 16 hours on the wrist and 8 hours face up when not __________________ Rolex - 116520 ~ 116710LN ~ 16610LV \| Panerai - PAM00425 ~ PAM00557 \| Tudor 79220N \| Zenith EP Chronomaster 1969

1 September 2009, 03:30 PM	#3
mldaytona "TRF" Member Join Date: Feb 2008 Real Name: Michael Location: USA Watch: me go all out Posts: 1,183	mine goes + 0.3 sec/day....it's simply amazing.

1 September 2009, 06:10 PM	#5
jayong Member Join Date: Jun 2009 Real Name: Jay Location: Vancouver, BC Watch: SS GMT IIc Posts: 54	Not as good as your GMT IIcs, I'm afraid. I've owned it since the beginning of July, and it's down 80 seconds, so around -1.3 seconds per day. But I can live with that.

1 September 2009, 06:47 PM	#7
topgun "TRF" Member Join Date: Jun 2008 Real Name: Tom Location: uk Watch: t\|t datejust Posts: 46	about -2.00sec per day, still not bad

1 September 2009, 06:56 PM	#8
joeyk "TRF" Member Join Date: Sep 2008 Location: uk/earth Watch: GMT IIc Posts: 698	+1 sometimes -1 consider very good i think ;)

1 September 2009, 07:08 PM	#9
swatty 2024 SubLV41 Pledge Member Join Date: Dec 2007 Real Name: Peter Location: Sydney Watch: The Game Posts: 17,415	-3/day

1 September 2009, 09:39 PM	#10
PBW Member Join Date: Jun 2008 Real Name: Peter Location: Germany Posts: 21	-3/day too

1 September 2009, 09:42 PM	#11
Gaijin 2024 ROLEX DATEJUST41 Pledge Member Join Date: Feb 2007 Location: Japan Watch: ing your back. Posts: 16,179	Supremely accurate! Best Rolex I have!

1 September 2009, 09:42 PM	#12
mike "TRF" Member Join Date: Jul 2005 Posts: 22,683	Going on two years, mine has settled in to +1 a day.

1 September 2009, 09:45 PM	#13
clarencek "TRF" Member Join Date: Apr 2009 Location: New York Posts: 400	I don't have one any more, but when I did it was about +1 per day. Most accurate non-quartz watch I owned!

1 September 2009, 10:56 PM	#14
Wink Member Join Date: Apr 2009 Location: South Carolina Posts: 84	My Explorer II, which uses the same movement (3186) as the GMT, is -3 per day after about four months. Wink

1 September 2009, 11:31 PM	#15
IT-guy "TRF" Member Join Date: Jun 2009 Location: DC Watch: SD 126600 Posts: 195	About -2 sec a day when in the winder. Better than that when on the wrist.

2 September 2009, 02:27 AM	#16
DATEJUSTSS Banned Join Date: May 2007 Real Name: Jesse Location: Central FLA Watch: GMT IIC Posts: 447	Mine's lost a 1/2 second over the last 3 weeks. I'd say that's pretty accurate.

2 September 2009, 03:08 AM	#17
Mathemagician "TRF" Member Join Date: Apr 2009 Real Name: JJ Location: PA Watch: GMT IIc Posts: 83	Started out at -6, settled in to -4ish, regulated to -1 and that's fine by me.

2 September 2009, 03:43 AM	#18
chiscoe "TRF" Member Join Date: Aug 2009 Location: virginia Posts: 72	My gmtIIc - 2 secs / day

2 September 2009, 05:00 AM	#21
looking to buy "TRF" Member Join Date: May 2008 Real Name: Bob Location: Paradise CA Posts: 920	Had it six weeks. It is now around -2.3 seconds per day. I expect that to improve over time. It seems like after a few months they speed up slightly on average. Love the watch. Just had my sub calibrated. It is now +1.5 seconds per day. __________________ 16610 Submariner - 116710 GMT II C - 16570 Explorer II - 126710BLRO GMT II (Pepsi) - 116300 Datejust II

2 September 2009, 05:57 AM	#23
scottkit "TRF" Member Join Date: Nov 2008 Location: hawaii Watch: SD, 2C Posts: 66	Owned for almost a year. Consistently 3-4 seconds slow a day. Wish it was better but it's ok.

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