amanico[JLC Moderator]
405599
The difficult question of dates, with Rolex....
I'd say that the GMT gilt era ended with 1, 6 xxx xxx serial numbers, which corresponds to '67.
I saw a very nice '67 Gilt GMT with SR 1,6xx xxx. This one:

Now, knowing when started to appear the MK I matt dial, that is another story.
Certainly in '68. Probably at the end of '67.
But one thing is sure:
As we collect gilt dials, why not collecting some matt dials? There are some very interesting ones.
The Mk1, for sure, but also the mini dial, like the one shown by Tyler, this Friday.
Thanks for adding some more GMT Material, my friend.
Best,
Nicolas
This message has been edited by amanico on 2012-04-21 00:20:15