Reference 126713GRNR-0001 presents the GMT-Master II in Rolex's yellow Rolesor construction, pairing Oystersteel with 18K yellow gold across its 40mm Oyster case and two-tone Jubilee bracelet. The black dial sits beneath a black and grey Cerachrom 24-hour bezel with gold-filled numerals, while a Cyclops lens magnifies the date window for immediate legibility.
Power comes from the calibre 3285, a perpetual, mechanical, self-winding movement manufactured by Rolex. It features a Chronergy escapement, a 70-hour power reserve, and an independently adjustable local hour hand for straightforward dual-timezone reading. The movement carries a Superlative Chronometer designation rated to −2/+2 seconds per day, and the watch offers 100 metres of water resistance via its Triplock crown.
Chromalight luminescent material coats the hands and hour markers for low-light visibility. This example is in new condition and comes accompanied by its original box and original papers.