The first reference of the GMT-Master II series, the 16760 was dubbed the 'Fat Lady' by collectors. This was due to it new case design being somewhat thicker than on previous models, the bezel too was wider and the crown guards larger. Another feature that set this reference apart from its predecessors is the bezel now adopted red and black, nicknamed 'Coke' over red and blue nicknamed 'Pepsi'.
Introduced in 1983, the present lot was manufactured in the second year of production. As such the dial is signed just 'Oyster Perpetual', and not 'Oyster Perpetual Date' as was added to later iterations. The reference was discontinued in 1988.