Side by side

Tudor Black Bay One 31vsWolbrook Skindiver II Professional

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Black Bay One 31
TudorBlack Bay One 31
MSRP $4,600
Skindiver II Professional
WolbrookSkindiver II Professional
MSRP $539

At a glance

13 of 29 specs differ
Diameter
Black Bay One 3131mm
Skindiver II Professional40mm
Power Reserve
Black Bay One 3150h
Skindiver II Professional40h
Water Resistance
Black Bay One 31100m
Skindiver II Professional200m
MSRP
Black Bay One 31$4,600
Skindiver II Professional$539

Full specifications

Case

8 specs
Diameter
31mm
40mm
Thickness
9.5mm
13mm
Lug-to-Lug
46mm
Lug Width
17mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Polished + Satin
Brushed and polished
Water Resistance
100m
200m
Caseback
Solid screw-down
Solid

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Anthracite
Black

Movement

2 specs
Caliber
MT5201
Miyota 9015
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$4,600
$539

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Tudor Black Bay One 31

Owners widely report the Tudor Black Bay One 31's polished case and bracelet scratch easily, though its wearability under gloves and robust movement are praised. Some desire more micro-adjustment options on the clasp, and a lack of contrast between the silver dial and hands is noted. The 31mm size may be a consideration for daily wear due to its 50-hour power reserve. On balance, owners and reviewers appreciate the Tudor Black Bay One 31 for its comfortable wearability and robust movement, despite concerns about case scratching and clasp adjustability.

Wolbrook Skindiver II Professional

Owners widely praise the Wolbrook Skindiver II Professional for its comfortable wearability, long-lasting lume, and attractive dial designs, with some appreciating the quartz accuracy and smooth sweeping second hand. The watch features a 40mm diameter, a well-weighted 120-click unidirectional countdown bezel with a BGW9 lumed triangle, and a shock-resistant HexapleX case architecture. It is powered by either a Miyota 9015 or 8315 movement, with the latter adjusted in France to ±15 seconds per day and offering a 60-hour power reserve. Some owners find the 20mm strap potentially problematic and note it wears like a 42mm watch despite its 40mm case size. One reviewer expressed disappointment in hand color matching, poor lume, bezel wobble, and the watch sitting high on its strap, ultimately not recommending it.

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