Sea-Dweller

Ref. 126600

Case diameter: 43 mm; Manufacturer spec
Lug-to-lug: 51 mm; Measured in a published review
Thickness: 15 mm; Measured in a published review
Lug width: 21 mm; Unverified

Retail price $14,550 (US, Oct 2026)

Your wristIdeal fit

Wrist flat: 55.1 mmLug-to-lug: 51 mm

How the Sea-Dweller wears

Its lugs add 8 mm to the 43 mm case, close to the 7.1 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 7" to 8.5" (17.8–21.6 cm); below 7" the lugs start to reach the edge of the wrist.

At 15 mm thick it is thicker than 96% of the 79 other dive watches we've measured, so expect it to sit tall on the wrist.

Its 21 mm lug width is one of the most common strap sizes; 28 other watches here share it, so aftermarket straps are easy to find.

Will the Sea-Dweller fit your wrist?

With a 51 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	Lugs overhang
7"	55.1 mm	Ideal fit
7.5"	59.1 mm	Ideal fit
8"	63 mm	Ideal fit

Specifications

Reference: 126600
Collection: Sea-Dweller
Status: In production
Case material: Oystersteel
Crystal: sapphire
Water resistance: 1220 m
Bezel: unidirectional rotatable 60-minute, black Cerachrom insert
Dial: intense black
Strap / bracelet: Oyster bracelet, three-piece solid links, Oysterlock clasp with Glidelock
Style: Dive

Movement

Caliber: Rolex 3235
Type: automatic
Power reserve: 70 hours
Frequency: 28,800 vph (4 Hz)
Jewels: 31
Accuracy: -2/+2 s/day (Superlative Chronometer)

8 other watches use the Rolex 3235

Takes 21 mm straps. See other 21 mm watches and straps.

Watches that wear the same size

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

Same 21 mm lug width

All 21 mm watches

These take the same straps as the Sea-Dweller.