Rolex. A stainless steel automatic calendar bracelet watch with dual time zone Model: GMT Master II Reference: 16710 Date: Purchased 31st March 1994 Movement: 31-jewel Cal.3185 automatic, adjusted to 5 positions and temperature, No.6249645 Dial: Black, luminous dot hour markers, baton quarters, white outer minute divisions, magnified date aperture at 3, polished Mercedes hands with luminous inserts, white arrow tipped red dual time zone hand Case: Brushed and polished tonneau form, screw down back, 24-hour marker to black bezel insert, No.N336111 Strap/Bracelet: Brushed and polished 93150 Oyster link Buckle/Clasp: Signed folding clasp SU11 Signed: Case, dial & movement Size: 40mm Accompaniments: Rolex box, outer card, punched Guarantee Certificate, spare 'Coke' bezel insert, spare link, brochures Footnotes: The Rolex GMT was launched in 1954 after the Transatlantic Airways company asked Rolex to produce a watch useful for their pilots. It quickly gained favour among the Pan-Am executives and the business jet-set community as a whole. Offered continuously since its introduction with relatively little modification it is perhaps, along with the Submariner, the most classic Rolex 'tool' watch made. The reference 16710 was launched in 1989 replacing the reference 16760. The new model boasted a slimmer case design and was offered with three different bezels, red and black, red and blue and all black as featured on this example.