I love the two-tone Bronze GMTs. Clint Eastwood wore this exact reference (16753) in this configuration (Jubilee bracelet and bi-color bezel) in the movie Firefox!
This is one of the "transitional" references, 1675x, the only GMT-Master IIs with the quick-set date. Later, in the reference 1671x the date became semi-quick-set with the advent of the jumping hour hand. Bronze Nipple Dial, Jubilee bracelet, yellow gold and stainless steel. It doesn't get any better.
The movements used in each are ETA 2836, 2893-2, 2824-2, and 2824-2, respectively. Function-wise it's non-date, date + GMT, date, and non-date, respectively.
