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Differs

Rolex GMT‑Master II126715CHNR

Shape: Round; Round; Round
Diameter (differs): 40 mm; 36 mm; 40 mm
Thickness: Not known; Not known; 12 mm
Lug width (differs): 20 mm; 23 mm; 20 mm
Material (differs): Everose gold; Rolesor (steel and gold); Everose gold
Bezel (differs): Bidirectional rotating; Fluted; Bidirectional rotating
Bezel insert (differs): Cerachrom ceramic, Brown/black; Not known; Cerachrom ceramic, Black
Caseback: Screw-down; Screw-down; Screw-down
Crystal: Sapphire; Sapphire; Sapphire
Cyclops: Yes; Yes; Yes
Crown: Screw-down; Screw-down; Screw-down
Water resistance: 100 m; 100 m; 100 m

Calibre (differs): Rolex 3285; Rolex 7135; Rolex 3235
Type: Automatic; Automatic; Automatic
Origin: In-house; In-house; In-house
Power reserve (differs): 70 h; 67 h; 70 h
Frequency (differs): 28,800 vph (4 Hz); 36,000 vph (5 Hz); 28,800 vph (4 Hz)
Jewels (differs): 34; 39; 31
Certification: Superlative Chronometer; Superlative Chronometer; Superlative Chronometer
Functions (differs): Centre hour, minute and seconds hands
24-hour display
Second time zone with independent rapid-setting of the hour hand
Instantaneous date
Stop-seconds for precise time setting; Centre hour, minute and seconds hands
Instantaneous date with rapid setting
Stop-seconds for precise time setting; Centre hour, minute and seconds hands
Instantaneous date with rapid setting
Stop-seconds for precise time setting
Complications (differs): Central seconds
Date
GMT / second time zone
Hacking (stop) seconds; Central seconds
Date
Hacking (stop) seconds; Central seconds
Date
Hacking (stop) seconds

The watches side by side