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red wrx · 22 December 2008, 10:43 AM

I bought a brand new GMT IIc last weekend, and decided today to verify the accuracy and it is running 1 minute faster per day. That is a lot, isn't it??

jas55 · 22 December 2008, 10:45 AM

That seems like a lot. Contact your supplier.

CH & USA · 22 December 2008, 11:04 AM

Definitely too much (10x COSC (-4/+6sec/day)!!!)... bring it to the shop and have them send it to RSC for regulation... I had a similar problem (+14.6sec/day), AD sent it... now +2.5/day. Only problem is it may take up to 6weeks... :-(

red wrx · 22 December 2008, 11:10 AM

Okkkkk.... I think I know what happened, I think I set the minutes wrong yesterday, I set the watch to 7:34 instead of 7:33 (as per time.gov). Today, when I checked, the seconds were running perfectly synchronized with time.gov.

TIME.GOV was exactly one minute behind, WHAT A COINCIDENCE!!!! That come to close to 2.5 seconds per hour faster. I just re-did it and placed the watch in the same position in the winder, so we will see.

CH & USA · 22 December 2008, 11:35 AM

Well, that's great news!! I check over 16days with http://tycho.usno.navy.mil/simpletime.html myself... but it's a bit over the top

Best to you and your new baby!

mike · 22 December 2008, 12:00 PM

Congrats on the IIc. It's perfect.

Jedi · 22 December 2008, 12:05 PM

In-winder tests are not to be relied upon for a watch's precision and accuracy. Far better to wear it.

22 December 2008, 10:43 AM	#1
red wrx "TRF" Member Join Date: Jun 2006 Location: los angeles Posts: 145	My brand new Rolex is running + 1 minute per day!!!! I bought a brand new GMT IIc last weekend, and decided today to verify the accuracy and it is running 1 minute faster per day. That is a lot, isn't it??

22 December 2008, 12:05 PM	#7
Jedi "TRF" Member Join Date: Sep 2007 Real Name: Lee Location: Malaysia Watch: 16750 Posts: 2,534	In-winder tests are not to be relied upon for a watch's precision and accuracy. Far better to wear it. __________________ Lee This is my watch. There are many like it but this one is mine... Flickr Blog

22 December 2008, 10:45 AM	#2
jas55 "TRF" Member Join Date: Dec 2008 Real Name: Lach Location: Western Australia Posts: 759	That seems like a lot. Contact your supplier.

22 December 2008, 11:04 AM	#3
CH & USA Member Join Date: Oct 2008 Location: Good ol' USA Watch: DATEJUST (116200) Posts: 161	Definitely too much (10x COSC (-4/+6sec/day)!!!)... bring it to the shop and have them send it to RSC for regulation... I had a similar problem (+14.6sec/day), AD sent it... now +2.5/day. Only problem is it may take up to 6weeks... :-(

22 December 2008, 11:10 AM	#4
red wrx "TRF" Member Join Date: Jun 2006 Location: los angeles Posts: 145	Okkkkk.... I think I know what happened, I think I set the minutes wrong yesterday, I set the watch to 7:34 instead of 7:33 (as per time.gov). Today, when I checked, the seconds were running perfectly synchronized with time.gov. TIME.GOV was exactly one minute behind, WHAT A COINCIDENCE!!!! That come to close to 2.5 seconds per hour faster. I just re-did it and placed the watch in the same position in the winder, so we will see.

22 December 2008, 11:35 AM	#5
CH & USA Member Join Date: Oct 2008 Location: Good ol' USA Watch: DATEJUST (116200) Posts: 161	Well, that's great news!! I check over 16days with http://tycho.usno.navy.mil/simpletime.html myself... but it's a bit over the top Best to you and your new baby!

22 December 2008, 12:00 PM	#6
mike "TRF" Member Join Date: Jul 2005 Posts: 22,683	Congrats on the IIc. It's perfect.

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