Watch Almanac
Tudor

Black Bay

Ref. M7941A1A0RU

Case diameter
41 mm
Manufacturer spec
Lug-to-lug
50 mm
Measured in a published review
Thickness
13.6 mm
Measured in a published review
Lug width
22 mm
Measured in a published review

Retail price $5,325 (US, Oct 2026)

Ideal fit
Wrist flat: 55.1 mmLug-to-lug: 50 mm

How the Black Bay wears

Its lugs reach 9 mm past the 41 mm case, more than the 7.1 mm typical across the almanac, so it wears larger than its diameter suggests.

On our fit model it sits best on wrists from 7" to 8.25" (17.8–21.0 cm); below 7" the lugs start to reach the edge of the wrist.

At 13.6 mm thick it is thicker than 76% of the 79 other dive watches we've measured, so expect it to sit tall on the wrist.

Its 22 mm lug width is one of the most common strap sizes; 27 other watches here share it, so aftermarket straps are easy to find.

Will the Black Bay fit your wrist?

With a 50 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
M7941A1A0RU
Collection
Black Bay
Status
In production
Introduced
2023
Case material
stainless steel
Crystal
sapphire
Water resistance
200 m
Bezel
unidirectional 60-minute, steel with burgundy anodised aluminium insert
Dial
black
Strap / bracelet
3-link stainless steel bracelet, T-fit clasp
Style
Dive

Movement

Caliber
Tudor MT5602-U
Type
automatic
Power reserve
70 hours
Frequency
28,800 vph (4 Hz)
Jewels
25
Accuracy
COSC + METAS Master Chronometer

Takes 22 mm straps. See other 22 mm watches and straps.

More Black Bay references

Watches that wear the same size

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

Same 22 mm lug width

All 22 mm watches

These take the same straps as the Black Bay.

Sources