Difference between current/previous generation GMT Master II

[mturnerb]

Hello all:

I am trying to understand the differences between the current (those with 3285 movement) and prior (those with 3185, ceramic bezel) GMT Master II, other than the movements.

I have Submariners from both generations (114060 and 126613LN) and understand the differences in diameter/lugs etc, but I don't know what changed on the case/lug dimensions in the similar GMT generations.

Thanks in advance!

[S.Explorer]

Very subtle change in case profile (slightly slimmer lugs on the 126 series). Option of a Jubilee bracelet and different bezel colours available (still not interchangeable).

[oldsheepdog]

My understanding is the lugs were slimmed up a bit. When I put them side by side I struggle to see it. Otherwise it’s just power reserve and the addition of the coronet at the six. They wear identically for me. There is a decent video on YouTube from Bob’s Watches that I am unable to provide due to post count.

[joli160]

There must be minor differences but not noticeable.
I have a GMT TT 116713 and a CHNR 126711.
They look exactly the same

[JRell]

Slimmer lugs much needed. I am obsessed with lugs lol. The biggest difference is the jubilee. I feel it is a must have with a GMT, unique to the Rolex sports line.

[SS Oyster]

3285 vs 3186
70hr vs 50hr power reserve (bigger barrel)
Bearing vs pinion rotor
10yr vs 5yr service interval
More bracelet (SS) and dial (PM) options


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[Stan Cooper]

The 16710 with easily interchangeable anodized aluminum bezel inserts and Jubilee/Oyster bracelets is much more versatile than the current 126710 models. Also, IMHO the slightly smaller 16710 case is more comfortable on my wrist, but I realize this is personal preference.