Notes: Silver-tone stainless steel case with a silver-tone stainless steel oyster bracelet. Bi-directional blue and stainless steel with a black ceramic with GMT markings bezel. Black dial with luminous hands and dot hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent superluminova luminescent. Date display at the 3 o'clock position. Rolex Calibre 3186 self-winding movement with a 50-hour power reserve. Scratch resistant sapphire crystal. Screw locked crown. Solid case back. Case size: 40 mm. Round case shape. Band length: 8 inches. Oysterlock clasp. Water resistant at 100 meters / 330 feet. Functions: GMT, second time zone, date, hour, minute, second, chronometer. Dress watch style. Watch label: Swiss Made. Rolex GMT Master II Black Dial Stainless Steel Mens Watch 116710BLNR.

Mechanism: Calibre 3186 is a self-winding mechanical movement entirely developed and manufactured by Rolex. In addition to the conventional hour, minute and seconds hands, it features a 24-hour hand to display a second time zone.

Like all Rolex Perpetual movements, the 3186 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. The 3186 is equipped with a Parachrom hairspring, offering greater resistance to shocks and to temperature variations. Its architecture, in common with all Oyster watch movements, makes it singularly reliable.

Family Notes: Although the Rolex GMT-Master was designed essentially for professional use, its combination of peerless functionality and rugged good looks has attracted a wider travelling public. As well as appreciating its ability to display different time zones, these travellers admire the robustness and versatile appearance that make the GMT-Master eminently suitable for globetrotting and, indeed, for any occasion.