Pepsi and Coke GMTs

You may find this information useful. The 16760 case is 0.5mm thicker than those that came before it and after it.

http://www.doubleredseadweller.com/watch-info/gmt/gmt-in-transition.html

or here are some more I posted on another thread.

https://omegaforums.net/threads/rolex-gmt-ii.25287/page-2#post-303371

As far as GMT functions:

Fist Gen GMT have the GMT hand (24 hour hand) fixed to the hour hand, with no way of independently setting it. Also no hacking mechanism. The only way to set up the date is to rotate the hours full 24 hour increments which is a pain in the ass. The GMT function is achieved only by setting the bezel in the desired place to mark the GMT time.

Around 70/71 they came up with the hacking mechanism with the 1575 cal

In the eighties they introduced the quickset feature (16750) also introduced the much more advance 3075 cal that had 28800 a/H before that the cals beat at 18000 and 19600 i believe. also they moved into 100m (330ft pressure/water resistance from the prior 50m

In the mid eighties they introduced the sapphire Crystal, this is the birth of the Master II (16760 "fat lady") , before that it's Master. So when you see a circa 1960's and 1970's gmat master II at bob's watches it is a mislabeled master. Also with the 16760 in mid eighties they started the applied white gold markers, some people see 16760 with applied markers as transitional..they are, sort of. also they had the independent hour function

late eighties though nineties they transitioned into Luminova from Tritium

sort of overlapping into the new millennium you have the 16710 returning to a slimmer design and with the independent hour hand the 16700 didn't have the independedn hour hand for some weird reason since the 16760 had it). this one changed to no holes around the F series on 2004. They had the 3185 caliber up to late 2007 when you can find the 2 stick version as they transitioned into the 3186 cal. by the M serial the 3186 was mostly transitioned Circa 2008/9 So when you find a 2004 F serial with cal 3186 cal at Bob's watches it's an error

Lastly the modern 116710 has the ceramic bezel and shares the thicker and less elegant sub case. loosing IMO the elegance and grace the GMT had through it's history. Not that I don't like big divers or watches, but I liked the proportions of the GMT pre ceramic.

There are transitional between all these series.

More to the point of the OP Original question, both the 16700 and the 16710 are slimmer, but the 16700 doesn't have the independent hour hand, and I'm not sure but u think only the 16710 transitioned into the T ( no holes on lugs) version. And if you look for an M serial or are lucky enough to get a "stick" transitional you can get a 3186 caliber with 10 tines the shock proof capacity as well as the antimagnetic qualities. Those I think are the most notable issues to take into consideration on those refferences