Model: GMT-Master 'Pepsi' Reference: 1675 Date: Circa 1961 Movement: 25-jewel Cal.1560 automatic, free-sprung Glucydor Microstella balance, adjusted to 5 positions & temperature, No.D86360 Dial: Black gloss, luminous dot hour markers with baton quarters, gilt outer minute divisions, magnified date aperture at 3, polished Mercedes hands with luminous inserts, centre seconds, arrow tipped red GMT hand Case: Brushed and polished tonneau form, screw down back, pointed crown guards, bi-directional blue and red 'pepsi' bezel insert, inner case back stamped II.61, No.694944 Strap/Bracelet: Fitted brushed 7206 Oyster link, end links stamped 580 Buckle/Clasp: Signed folding clasp, stamped 2 61 Signed: Case, dial & movement Size: 39mm 注脚 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 1675 began production 80 years ago in 1960. This was the first GMT Master reference to feature protective crown guards as well as the smaller triangular tip on the second hour hand.