Side-by-side at a glance. Click a watch above to open the full reference page.

	Rolex 126710BLNR	Rolex 16710
Model	GMT-Master II "Batman" (Cerachrom)	GMT-Master II (pre-ceramic, aluminium bezel)
Caliber	Rolex Cal. 3285 -- in-house automatic GMT, 28,800bph, 70h PR, 31j; Chronergy escapement, Parachrom hairspring; black/blue bicolor Cerachrom bezel insert (the "Batman" colorway)	Rolex Cal. 3185 -- in-house automatic GMT, 28,800bph, 48h PR, 31j; bidirectional rotor, Parachrom hairspring; predecessor to current 3285
Case size	40mm	40mm
Lug-to-lug	47mm	47mm
Years produced	2019–present	1989–2007
Brand tier	luxury	luxury
Era	modern	vintage
Movement tier	In-house manufacture	In-house manufacture
Market median (excellent / full-set)	n/a	n/a
Typical range	n/a	n/a
Confidence	low	low
Categories	gmt-worldtime, sport	gmt-worldtime, sport
Editorial	n/a	yes
Collector note	n/a	most sought: Last GMT-Master II with an independently adjustable 24-hour hand before the current 126710; the "LNIB" market for this reference is strong.
Named dial variants	n/a	2 variants

Rolex GMT-Master II "Batman" (Cerachrom) vs Rolex GMT-Master II (pre-ceramic, aluminium bezel)