The Rolex GMT-Master II reference 116759SANR represents one of the brand’s most technically sophisticated executions of the dual-timezone concept, distinguished by its black sapphire and diamond bezel construction. This 40mm white gold case features the iconic Oyster architecture with polished and brushed finishing, housing a black dial with applied white gold hour markers. The bezel represents significant technical achievement, with precisely cut sapphire segments alternating with baguette-cut diamonds set in white gold. This configuration maintains full GMT functionality while elevating the aesthetic through material selection. The Oyster bracelet in white gold continues the alternating polished and brushed finishing, secured by the Oysterlock clasp with Easylink comfort extension system.
Powering this timepiece is the Caliber 3186, a self-winding mechanical movement developed and manufactured by Rolex. This movement features the Paramagnetic blue Parachrom hairspring and offers a 48-hour power reserve. The GMT complication allows simultaneous reading of three different time zones through the combination of the 24-hour hand, rotatable 24-hour bezel, and conventional hour and minute hands. The movement is certified as a Superlative Chronometer, ensuring precision to -2/+2 seconds per day. The black dial maintains excellent legibility with Chromalight display on the hands and markers, providing long-lasting blue luminescence in low-light conditions.
This particular example presents in mint condition with no visible signs of wear, maintaining its original factory specifications. The timepiece includes its original Rolex papers and documentation, confirming its authenticity and Superlative Chronometer status. The combination of the black sapphire and diamond bezel with white gold case makes this reference particularly desirable among collectors, as these specialized configurations were produced in limited numbers compared to standard metal bezel versions. The GMT-Master II’s enduring popularity as a functional travel watch, combined with the rarity of this specific bezel configuration in white gold, positions this reference as a significant piece within Rolex’s contemporary collection with strong potential for long-term value retention.
