Seamaster Diver 300M Co-Axial 41

Ref. 212.30.41.20.01.003

Case diameter: 41 mm; Manufacturer spec
Lug-to-lug: 47.5 mm; Measured in a published review
Thickness: 13 mm; Measured in a published review
Lug width: 20 mm; Unverified

Your wristIdeal fit

Wrist flat: 55.1 mmLug-to-lug: 47.5 mm

How the Seamaster Diver 300M Co-Axial 41 wears

Its lugs add 6.5 mm to the 41 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 13 mm thick it is thicker than 58% of the 142 other dive watches we've measured, so expect it to sit tall on the wrist.

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 Seamaster Diver 300M Co-Axial 41 fit your wrist?

With a 47.5 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: 212.30.41.20.01.003
Collection: Seamaster
Status: Discontinued (2018)
Case material: stainless steel
Crystal: sapphire
Water resistance: 300 m
Bezel: unidirectional rotatable 60-minute, black ceramic insert
Dial: black (wave pattern)
Strap / bracelet: stainless steel bracelet with folding clasp
Style: Dive

Movement

Caliber: Omega 2500
Type: automatic
Accuracy: COSC chronometer

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

More Seamaster 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 Seamaster Diver 300M Co-Axial 41.