Rolex GMT-Master II Yellow Gold — Black Dial, Diamond & Black Sapphire Bezel | Ref. 116758SANR

Reference 116758SANR represents the GMT-Master II at its most opulent — an 18ct yellow gold case paired with a bezel set with diamonds and black sapphires in place of the traditional Cerachrom insert. Introduced as part of Rolex's gem-set professional line, this reference transforms the pilot's dual-time tool watch into a statement of haute horlogerie while retaining every technical competency of the GMT-Master II platform.

The movement within is Calibre 3186, a self-winding manufacture calibre featuring a paramagnetic blue Parachrom hairspring for improved resistance to magnetic fields and temperature variation. The independently adjustable 24-hour GMT hand allows the wearer to track a second time zone without disrupting the running of the local time display — a complication born from Rolex's original collaboration with Pan Am in the 1950s. The dial presents in black with applied gold hour markers, while the bezel's alternating diamond and black sapphire setting delivers a jewellery-grade visual impact unusual in professional-lineage references.

This variant appeals to a collector who demands both pedigree and extravagance. The combination of yellow gold, precious stones, and a genuine pilot's complication makes it a crossover piece attractive to both complications enthusiasts and connoisseurs of gem-set Rolex references. Its rarity in the secondary market — yellow gold GMT-Masters appear infrequently — underpins sustained collector interest and strong value retention.