The Rolex Forums   The Rolex Watch

ROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEX

Old 28 April 2012, 06:24 AM   #1
Tombrone
"TRF" Member
 
Tombrone's Avatar
 
Join Date: May 2010
Location: Belgium
Posts: 126
Rolex reference 16710R?

Hello,

I'm about to purchase a GMT 16710, from a know watch dealer in my area. The warranty card reads 16710R. Anybody ever seen this reference number before?

Also, it is a 16710(R) M serial, normal II dial (no stick dial). What are the chances this has a 3186 movement? It is not that important to me but I would just like to know. I'm also unable to go and test the watch with the wiggle test because the shop is quite far away from me.

Thanks!
Tom
Tombrone is offline   Reply With Quote
Old 28 April 2012, 06:38 AM   #2
77T
2024 SubLV41 Pledge Member
 
77T's Avatar
 
Join Date: Dec 2010
Real Name: PaulG
Location: Georgia
Posts: 42,016
Yes - IIRC the R just referred to the Rouge bezel color(Coke) on the SS GMT. Should be the 3185.

Here's more info: http://www.gmtmasterhistory.com/
__________________


Does anyone really know what time it is?
77T is offline   Reply With Quote
Old 28 April 2012, 06:56 AM   #3
PeterT
"TRF" Member
 
PeterT's Avatar
 
Join Date: Dec 2007
Location: England
Watch: 16613 16710 16600
Posts: 1,021
i thought that all M serials and the later Z serials had the 3186 movement.

Peter
PeterT is offline   Reply With Quote
Old 28 April 2012, 07:19 AM   #4
greg325i
"TRF" Member
 
Join Date: May 2010
Real Name: Greg
Location: Naperville, IL
Watch: GMT-II, Exp I, Sub
Posts: 49
Quote:
Originally Posted by PeterT View Post
i thought that all M serials and the later Z serials had the 3186 movement.

Peter
This is my understanding as well.
greg325i is offline   Reply With Quote
Old 28 April 2012, 07:52 AM   #5
Kanger
Banned
 
Join Date: Jan 2010
Real Name: Daniel
Location: North Carolina
Watch: Sea Dweller
Posts: 5,524
If it is a M serial, the chances of 3186 are 100%
Kanger is offline   Reply With Quote
Old 28 April 2012, 08:26 AM   #6
roger0770
Banned
 
Join Date: Nov 2009
Location: On Earth
Watch: A Few
Posts: 1,510
the only way to find out is to ask them to open up the case back and show you.
roger0770 is offline   Reply With Quote
Old 28 April 2012, 09:32 AM   #7
RRGHOST1
"TRF" Member
 
RRGHOST1's Avatar
 
Join Date: Dec 2009
Real Name: luke standing
Location: england
Watch: Rolex TT SubC Blue
Posts: 3,997
I wouldn't bother opening the watch up just to check its the 3186,just enjoy the watch whatever movement it has in it.
RRGHOST1 is offline   Reply With Quote
Old 28 April 2012, 09:44 AM   #8
77T
2024 SubLV41 Pledge Member
 
77T's Avatar
 
Join Date: Dec 2010
Real Name: PaulG
Location: Georgia
Posts: 42,016
I'm sorry, I missed the M reference in your post. Agree with Luke about the relative merits - in fact another discussion on the 3185 vs. 3186 has some interesting points: http://www.rolexforums.com/showthread.php?t=38309

BTW, what price is he asking?
__________________


Does anyone really know what time it is?
77T is offline   Reply With Quote
Old 9 August 2018, 11:31 PM   #9
hishorology
"TRF" Member
 
Join Date: Apr 2016
Location: U.S.
Posts: 16
Quote:
Originally Posted by Tombrone View Post
Hello,

I'm about to purchase a GMT 16710, from a know watch dealer in my area. The warranty card reads 16710R. Anybody ever seen this reference number before?

Also, it is a 16710(R) M serial, normal II dial (no stick dial). What are the chances this has a 3186 movement? It is not that important to me but I would just like to know. I'm also unable to go and test the watch with the wiggle test because the shop is quite far away from me.

Thanks!
Tom
Was this a pepsi or a coke?
hishorology is offline   Reply With Quote
Old 12 August 2018, 06:24 AM   #10
sheldonsmith
2024 Pledge Member
 
sheldonsmith's Avatar
 
Join Date: Nov 2005
Location: Member 202♛
Posts: 1,815
From my webpage at https://www.minus4plus6.com/paracromblu16710.php#crown

The Crown Method
Another method for discerning a 3185 with the 3186 movement is through the the Crown Rotation Method. This method is another way to discern the type of movement without having to remove the caseback. Because the calendar and hour-hand setting mechanism was redesigned in the 3186 movement, the number of turns of the crown to turn the 12 hour hand is different on a 3186 than it is on a 3185.

To perform this test, unscrew the crown such that the crown is in the hand setting position. With the crown face-up, count how many hours the hour-hand travels with one full revolution of the winding crown.

3185: one complete crown revolution makes the hour hand jumps 6 timezones/hours

3186: one complete crown revolution equals 8-9 timezones/hours
This tip was provided to Minus4Plus6.com by Ed who discovered this method on a French watch forum.

~ Sheldon
__________________
sheldonsmith 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

Wrist Aficionado

My Watch LLC

WatchesOff5th

DavidSW Watches

Takuya Watches

OCWatches


*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.