GMT-Master II

Ref. 16710

Case diameter: 40 mm; Manufacturer spec
Lug-to-lug: 47.7 mm; Measured in a published review
Thickness: 12 mm; Measured in a published review
Lug width: 20 mm; Unverified

Your wristIdeal fit

Wrist flat: 55.1 mmLug-to-lug: 47.7 mm

How the GMT-Master II wears

Its lugs add 7.7 mm to the 40 mm case, close to the 7 mm typical across the almanac, so its diameter is a fair guide to how it wears.

On our fit model it sits best on wrists from 6.75" to 8" (17.1–20.3 cm); below 6.75" the lugs start to reach the edge of the wrist.

At 12 mm thick it is slimmer than 78% of the 36 other gmt watches we've measured, so it slides under a cuff more easily than most.

Its 20 mm lug width is one of the most common strap sizes; 186 other watches here share it, so aftermarket straps are easy to find.

Will the GMT-Master II fit your wrist?

With a 47.7 mm lug-to-lug, here is how it wears across common wrist sizes. We estimate the flat top of each wrist from its circumference; measure yours for a closer answer in the fit finder.

Wrist	Flat width (est.)	Fit
6"	47.2 mm	Lugs overhang
6.5"	51.2 mm	Snug, lugs near the edge
7"	55.1 mm	Ideal fit
7.5"	59.1 mm	Ideal fit
8"	63 mm	Ideal fit

Specifications

Reference: 16710
Collection: GMT-Master II
Status: Discontinued
Case material: Stainless steel
Crystal: sapphire
Water resistance: 100 m
Bezel: bidirectional rotatable 24-hour, aluminum insert (black, Pepsi red/blue or Coke red/black)
Dial: black
Strap / bracelet: Oyster or Jubilee bracelet
Style: GMT, Sport

Movement

Caliber: Rolex 3185
Type: automatic
Power reserve: 50 hours
Frequency: 28,800 vph (4 Hz)
Jewels: 31
Accuracy: COSC chronometer

Takes 20 mm straps. See other 20 mm watches and straps.

More GMT-Master II references

Watches that wear the same size

Other watches within 1.5 mm of its lug-to-lug.

Same 20 mm lug width

All 20 mm watches

These take the same straps as the GMT-Master II.