The Rolex GMT-Master II 126713GRNR combines Rolex’s iconic travel-watch design with Yellow Rolesor — Oystersteel and 18 ct yellow gold. Its black dial is paired with a distinctive two-colour black and grey Cerachrom bezel, giving the watch a strong presence while remaining exceptionally versatile.
Introduced in 2023, reference 126713GRNR features a 40mm Oyster case, Oyster bracelet and Rolex calibre 3285 automatic movement with approximately 70 hours of power reserve.
Collectors sometimes refer to the black-and-grey GMT-Master II as the “Zombie” or “Bumblebee.” These are unofficial nicknames for the same reference — there is no mechanical or design difference between them.
 
It's a Complete Set, box, papers