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TimingsEverything · 19 October 2011, 02:22 PM

I've been reading various sources and many say that the GMT Master originated in 1954. However, Rolex's advertising (an example of which is quoted in my signature below) states that it originated in 1955.

I've tried searching but can't seem to find the answer to this discrepancy. My theory is that while the movement and case originated in 1954, it was then called the Turn-O-Graph and wasn't called the GMT Master until after Pan Am and Rolex collaborated and released it by that name in 1955. Anyone know for sure?

ecsub44 · 19 October 2011, 02:38 PM

I don't know for sure...

But my Rolex GMT Master iPhone App states that the 6202 Turn-O-Graph with 24-hour complication came out in 1954. The 6524 is also listed as having been introduced in 1954.

For whatever that's worth...

dddrees · 19 October 2011, 08:33 PM

This site:

http://gmtmasterhistory.com/gmt-master_ref_6542.html

States the following:

Production Period: 1954-1959
Model Name: Rolex GMT Master
Caliber: 1036 (1954-1959), 1065 (1957-1959), 1066 (1957-1959)
Pressure proof to 50m/165ft

This was the first GMT Master.
It was launched 1954. It was developed on the basis of a regular Turn-O-Graph (Ref. 6202). The modifications were a different bezel and a modified movement.

TTmax · 19 October 2011, 09:21 PM

Extract from a Rolex Dealer card dated about 1995 :

1953 - Explorer
1953 - Sub no date
1954 - GMT
1970 - Sub date
1971 - Sea Dweller
1972 - Explorer 2
1983 - GMT 2
1992 - Yacht Master

MY-WATCH · 20 October 2011, 12:39 AM

I would say 1954

Keeperoftime · 20 October 2011, 12:44 AM

Warning this is according to "Tourneau"

19 October 2011, 02:22 PM	#1
TimingsEverything "TRF" Member Join Date: Sep 2011 Location: Silicon Valley Watch: Daytona Posts: 180	GMT Master, Orig. in 1954 or 1955? I've been reading various sources and many say that the GMT Master originated in 1954. However, Rolex's advertising (an example of which is quoted in my signature below) states that it originated in 1955. I've tried searching but can't seem to find the answer to this discrepancy. My theory is that while the movement and case originated in 1954, it was then called the Turn-O-Graph and wasn't called the GMT Master until after Pan Am and Rolex collaborated and released it by that name in 1955. Anyone know for sure? __________________ "Every Rolex is made for greatness. The GMT-Master, introduced in 1955, was developed in collaboration with Pan Am to meet the needs of their international pilots. The GMT-Master II has proven to be even more invaluable as it features a rotatable 24-hour graduated bezel that allows those who travel the world to read three different time zones." Rolex.com

19 October 2011, 02:38 PM	#2
ecsub44 "TRF" Member Join Date: Feb 2011 Location: US Watch: Sub Posts: 3,175	I don't know for sure... But my Rolex GMT Master iPhone App states that the 6202 Turn-O-Graph with 24-hour complication came out in 1954. The 6524 is also listed as having been introduced in 1954. For whatever that's worth... __________________ *侘寂 -- wabi-sabi --* acceptance of transience and imperfection by finding beauty in that which is imperfect, impermanent, and incomplete Commissioner of WEIRD POLICE , Badge # ecsub44

19 October 2011, 08:33 PM	#3
dddrees "TRF" Member Join Date: May 2010 Real Name: Dan Location: USA Watch: This N That Posts: 34,258	This site: http://gmtmasterhistory.com/gmt-master_ref_6542.html States the following: Production Period: 1954-1959 Model Name: Rolex GMT Master Caliber: 1036 (1954-1959), 1065 (1957-1959), 1066 (1957-1959) Pressure proof to 50m/165ft This was the first GMT Master. It was launched 1954. It was developed on the basis of a regular Turn-O-Graph (Ref. 6202). The modifications were a different bezel and a modified movement. __________________ When it captures your imagination, that's when you know you have found your passion. Loyal Foot Soldier of The Nylon Nation. Card Carrying Member of the Global Association of Retro-Grouch-Curmudgeons

20 October 2011, 12:44 AM	#6
Keeperoftime "TRF" Member Join Date: Apr 2009 Real Name: Jeremy Location: Louisiana Watch: Rolex Posts: 2,732	Warning this is according to "Tourneau" __________________ As a man is, so he sees. As the eye is formed, such are its powers. William Blake

19 October 2011, 09:21 PM	#4
TTmax Banned Join Date: Mar 2011 Real Name: Christophe Location: France Watch: DJ/Gmt2/IIc/E2/ToG Posts: 434	Extract from a Rolex Dealer card dated about 1995 : 1953 - Explorer 1953 - Sub no date 1954 - GMT 1970 - Sub date 1971 - Sea Dweller 1972 - Explorer 2 1983 - GMT 2 1992 - Yacht Master

20 October 2011, 12:39 AM	#5
MY-WATCH "TRF" Member Join Date: Jul 2010 Real Name: Sala hu din Location: N/A Posts: 1,813	I would say 1954

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