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mkmk · 29 September 2019, 04:24 AM

My friend has a GMT II - 116713. When he went to wind it a couple days ago it felt "gritty" and felt like it was grinding when wound. He let it run out off the wrist and then wound it again. Same feel. Then today he went to wind it and it wound normal like mine does. Tried it again to make sure and gritty again. Tried again couple hours later it was fine. Tried again and gritty. He says his watch runs fine and is keeping excellent time. He asked me to ask for the forums advice. Doesn't want to service it if he doesn't have to.
Thanks in advance for any information you can share.

DoctorA · 29 September 2019, 04:27 AM

I’m no expert but it’s time to have it looked at by RSC! I wouldn’t wind it as I’d worry about damaging something else especially given the “grinding” description which is certainly not normal!

77T · 29 September 2019, 04:37 AM

So a couple of thoughts as it appears this is intermittent and the accuracy seems OK.

The mainspring in the barrel may be dried out and chafing slightly against the dry barrel sometimes.

Or as the mainspring is tightening, the tail of it is sometimes slipping along a section of the wall inside the barrel that is now worn.

The best way to check is opening it up.

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Dirt · 29 September 2019, 01:58 PM

Quote:

Originally Posted by DoctorA

I’m no expert but it’s time to have it looked at by RSC! I wouldn’t wind it as I’d worry about damaging something else especially given the “grinding” description which is certainly not normal!

I would tend to agree.
The fact that it's inconsistent is a concern.
However, having said that. Why is it being manually wound?
What's wrong with just wearing it and letting it wind itself up as it is an auto after all.

Lester · 29 September 2019, 02:21 PM

Agree too. Cheers everyone.

In-Cog-Neeto · 29 September 2019, 02:52 PM

Quote:

Originally Posted by 77T

So a couple of thoughts as it appears this is intermittent and the accuracy seems OK.

The mainspring in the barrel may be dried out and chafing slightly against the dry barrel sometimes.

Or as the mainspring is tightening, the tail of it is sometimes slipping along a section of the wall inside the barrel that is now worn.

The best way to check is opening it up.

Sent from my iPhone using Tapatalk Pro

If the barrel starts drying out you are doing something wrong

77T · 29 September 2019, 10:29 PM

Quote:

Originally Posted by In-Cog-Neeto

If the barrel starts drying out you are doing something wrong

I’m not sure what you mean. The owner doesn’t have much influence on the barrel.

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In-Cog-Neeto · 29 September 2019, 11:25 PM

Quote:

Originally Posted by 77T

I’m not sure what you mean. The owner doesn’t have much influence on the barrel.

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Lol. I’m too obscure brother

vistec · 29 September 2019, 11:28 PM

This happened to me. BLNR. Rolex serviced free under warranty. Send it in ASAP

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mwatch · 29 September 2019, 11:33 PM

Had a similar issue on a sub and it turned out the watch needed service, running dry. Accuracy was still within COSC and amplitude was within normal range so don’t pay much attention to these numbers in such situation.

77T · 30 September 2019, 01:52 AM

Quote:

Originally Posted by In-Cog-Neeto

Lol. I’m too obscure brother

Ahhh...different kind of barrel...

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In-Cog-Neeto · 30 September 2019, 03:29 AM

Quote:

Originally Posted by 77T

Ahhh...different kind of barrel...

Sent from my iPhone using Tapatalk Pro

Thats the one

Tools · 30 September 2019, 06:18 AM

So, it has a gritty feel when winding. This doesn't have any impact on how it is running, does it?

Don't look for issues when there are none, or they are minor. Have it serviced when something actually goes wrong.

Fire bloke · 30 September 2019, 07:15 AM

Interesting as it's from flat
Usually get a gritty feel if fully wound. And it's the clutch slipping

bjaredt · 1 October 2019, 01:55 AM

I just got my Explorer 214270 back from RSC and I had the same problem. My watch is only a month old. They said it got magnetized and that can mess up the movement. They were not super clear with what exactly the issue was. But now it sounds like it should when I wind it. If you live near a RSC they will have a specialist look at it right there to see if it needs to go in for repairs. It took two weeks to fix. Best of luck!

mkmk · 4 October 2019, 10:16 AM

Thanks all for the info. I gave a copy of all the posts to my friend and he decided to ship it to RSC in Dallas. He says he'll feel better knowing for sure if it needs a service or if all is ok.

29 September 2019, 04:24 AM	#1
mkmk "TRF" Member Join Date: Jul 2009 Location: So. California Posts: 451	Grinding feeling when winding GMT II My friend has a GMT II - 116713. When he went to wind it a couple days ago it felt "gritty" and felt like it was grinding when wound. He let it run out off the wrist and then wound it again. Same feel. Then today he went to wind it and it wound normal like mine does. Tried it again to make sure and gritty again. Tried again couple hours later it was fine. Tried again and gritty. He says his watch runs fine and is keeping excellent time. He asked me to ask for the forums advice. Doesn't want to service it if he doesn't have to. Thanks in advance for any information you can share.

29 September 2019, 04:27 AM	#2
DoctorA "TRF" Member Join Date: Oct 2017 Location: USA Posts: 6,545	I’m no expert but it’s time to have it looked at by RSC! I wouldn’t wind it as I’d worry about damaging something else especially given the “grinding” description which is certainly not normal! __________________ Wear the watch you like, not the one they tell you to wear!

29 September 2019, 04:37 AM	#3
77T 2024 SubLV41 Pledge Member Join Date: Dec 2010 Real Name: PaulG Location: Georgia Posts: 41,900	Grinding feeling when winding GMT II So a couple of thoughts as it appears this is intermittent and the accuracy seems OK. The mainspring in the barrel may be dried out and chafing slightly against the dry barrel sometimes. Or as the mainspring is tightening, the tail of it is sometimes slipping along a section of the wall inside the barrel that is now worn. The best way to check is opening it up. Sent from my iPhone using Tapatalk Pro __________________ Does anyone really know what time it is?

30 September 2019, 06:18 AM	#13
Tools TRF Moderator & 2024 SubLV41 Patron Join Date: May 2007 Real Name: Larry Location: Mojave Desert Watch: GMT's Posts: 43,490	So, it has a gritty feel when winding. This doesn't have any impact on how it is running, does it? Don't look for issues when there are none, or they are minor. Have it serviced when something actually goes wrong. __________________ (Chill ... It's just a watch Forum.....) NAWCC Member

29 September 2019, 02:21 PM	#5
Lester "TRF" Member Join Date: Apr 2013 Real Name: Les Location: Singapore Watch: Rolex Posts: 25	Agree too. Cheers everyone.

29 September 2019, 11:28 PM	#9
vistec "TRF" Member Join Date: Jun 2015 Location: toronto Posts: 259	This happened to me. BLNR. Rolex serviced free under warranty. Send it in ASAP Sent from my iPad using Tapatalk

29 September 2019, 11:33 PM	#10
mwatch 2024 SubLV41 Pledge Member Join Date: May 2012 Location: Illinois Posts: 1,020	Had a similar issue on a sub and it turned out the watch needed service, running dry. Accuracy was still within COSC and amplitude was within normal range so don’t pay much attention to these numbers in such situation.

30 September 2019, 07:15 AM	#14
Fire bloke Banned Join Date: Aug 2019 Location: United Kingdom Posts: 329	Interesting as it's from flat Usually get a gritty feel if fully wound. And it's the clutch slipping

1 October 2019, 01:55 AM	#15
bjaredt "TRF" Member Join Date: Oct 2016 Location: NYC Posts: 3	I just got my Explorer 214270 back from RSC and I had the same problem. My watch is only a month old. They said it got magnetized and that can mess up the movement. They were not super clear with what exactly the issue was. But now it sounds like it should when I wind it. If you live near a RSC they will have a specialist look at it right there to see if it needs to go in for repairs. It took two weeks to fix. Best of luck!

4 October 2019, 10:16 AM	#16
mkmk "TRF" Member Join Date: Jul 2009 Location: So. California Posts: 451	Thanks all for the info. I gave a copy of all the posts to my friend and he decided to ship it to RSC in Dallas. He says he'll feel better knowing for sure if it needs a service or if all is ok.

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