ROLEX · GMT-MASTER II · AUTOMATIC · 40MM · 18K YELLOW GOLD · REF 126718GRNR-0001

ROLEX · GMT-MASTER II · AUTOMATIC · 40MM · 18K YELLOW GOLD · REF 126718GRNR-0001 · BLACK DIAL · BXP · COA

Field Detail
Reference 126718GRNR-0001
Year 2023
Movement Automatic, Rolex Calibre 3285, Superlative Chronometer, ~70h power reserve
Case size 40mm diameter, 11.9mm thick, approx. 48mm lug-to-lug
Case material 18k yellow gold
Bezel Bidirectional 24-hour rotatable, grey and black Cerachrom insert
Dial Black lacquer, Chromalight display, 18k yellow gold hour markers
Bracelet 18k yellow gold Jubilee, Oysterlock folding clasp with Easylink 5mm extension
Crystal Sapphire, Cyclops over date
Water resistance 100m / 330ft
Condition Pre-owned — Excellent
Inclusions BXP (box and papers)
COA Yes — certificate of authenticity present

Rolex's 2023 reintroduction of solid 18k yellow gold to the GMT-Master II line, and the debut of the grey-and-black "GRNR" Cerachrom bezel — a genuinely new colourway rather than a rework of an existing insert, which has made this an early collector focus among modern gold sports Rolex.
Powered by the Calibre 3285 with Chronergy escapement, offering roughly 70 hours of power reserve, an independently adjustable hour hand for a second time zone, and Superlative Chronometer certification to −2/+2 seconds per day.
Black lacquer dial with Chromalight luminescence and 18k yellow gold applied markers, set against the two-tone ceramic bezel that tempers the all-gold case and bracelet. Case and Jubilee bracelet show the standard Rolex brushed-and-polished treatment throughout.
Excellent pre-owned condition: crisp case lines with no evidence of over-polishing, sharp bezel and clasp engraving, bracelet stretch minimal, dial and hands free of blemish under loupe.
Presented as a full set with original box and papers, plus a certificate of authenticity — the configuration the market pays a premium for on a reference this recent.