The Rolex Forums   The Rolex Watch

ROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEX


Go Back   Rolex Forums - Rolex Watch Forum > Rolex & Tudor Watch Topics > Rolex WatchTech

Reply
 
Thread Tools Display Modes
Old 29 January 2017, 02:24 PM   #1
stanima
"TRF" Member
 
Join Date: Dec 2014
Real Name: Mark
Location: Missoula, MT
Watch: GMT II SS/Gold
Posts: 21
GMT II time-keeping accurate only when fully wound

I thought my GMT II (16713) was keeping lousy time. I purchased a winder, and since I got it I have been keeping it on the winder when it isn't worn.

So before I got the winder it was losing 3-20 seconds a day. On average a minute every 2 weeks. My normal wear period was 8 hours a day, as I work from home and don't put my watch on until I headed out. That was usually between 2 and 3 pm, and then keep the watch on until bedtime, 11 or midnight.

Since I have been using the winder, exactly one month ago, the watch is exactly 1 second slow. Or 0.032 seconds per day.

My question- is that normal? If the watch is only partially wound will it run slower? I would have thought that with a good mainspring the watch would run the same whether the power reserve was full or nearly depleted.

Watch was fully serviced at the beginning of 2016 by Rick Dietel.

Thanks.
stanima is offline   Reply With Quote
Old 10 February 2017, 05:14 AM   #2
mobster600
2024 Pledge Member
 
Join Date: Jan 2017
Location: USA
Watch: Yes
Posts: 1,473
Maybe you need a new main spring or power transfer mechanism idk the name. Your correct the tension should be the same wether it's near depletion or fully wound. I would say to keep using the winder since it's working and manually wind the crown every once in a while.
mobster600 is offline   Reply With Quote
Old 10 February 2017, 08:47 AM   #3
Vanessa CW21
TechXpert & 2016 Patron
 
Vanessa CW21's Avatar
 
Join Date: Aug 2007
Location: Mx
Posts: 1,572
Your watch seems to be winding properly, so I would not be concerned. It seems to me that your wearing habits just aren't enough to wind the watch to the point were it keeps good time. The mainspring should provide even timing between the fully wound position and the 24h later (about half way down) but after that, the lack of power can affect the timekeeping significantly, as you've noticed.
__________________
Member# 5731
Instagram: @vanessa.cw21

Watch my Rolex repair video: https://youtu.be/jDnaotCTpTA
Vanessa CW21 is offline   Reply With Quote
Old 18 February 2017, 06:01 AM   #4
ROLLiWORKS
"TRF" Member
 
Join Date: Feb 2015
Real Name: Michael H
Posts: 964
+2
ROLLiWORKS is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Takuya Watches

Bobs Watches

My Watch LLC

OCWatches

DavidSW Watches

Coronet


*Banners Of The Month*
This space is provided to horological resources.





Copyright ©2004-2024, The Rolex Forums. All Rights Reserved.

ROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEX

Rolex is a registered trademark of ROLEX USA. The Rolex Forums is not affiliated with ROLEX USA in any way.