Watch Almanac
Rolex

GMT-Master II

Ref. 116710LN

Case diameter
40 mm
Manufacturer spec
Lug-to-lug
48.2 mm
Measured in a published review
Thickness
12.1 mm
Measured in a published review
Lug width
20 mm
Unverified
Ideal fit
Wrist flat: 55.1 mmLug-to-lug: 48.2 mm

How the GMT-Master II wears

Its lugs add 8.2 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 12.1 mm thick it is slimmer than 69% 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 48.2 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.

WristFlat width (est.)Fit
6"47.2 mmLugs overhang
6.5"51.2 mmSnug, lugs near the edge
7"55.1 mmIdeal fit
7.5"59.1 mmIdeal fit
8"63 mmIdeal fit

Specifications

Reference
116710LN
Collection
GMT-Master II
Status
Discontinued
Introduced
2007
Case material
Oystersteel (904L)
Crystal
sapphire
Water resistance
100 m
Bezel
bidirectional rotatable 24-hour, black Cerachrom insert
Dial
black
Strap / bracelet
Oyster bracelet, Oysterlock clasp with Easylink
Style
GMT, Sport

Movement

Caliber
Rolex 3186
Type
automatic
Power reserve
50 hours
Frequency
28,800 vph (4 Hz)
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.

Sources