Side by side

Zelos Hammerhead (Tantalum LE)vsTudor Black Bay One 31

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

Hammerhead (Tantalum LE)
ZelosHammerhead (Tantalum LE)
MSRP $1,499
Black Bay One 31
TudorBlack Bay One 31
MSRP $4,600

At a glance

13 of 29 specs differ
Diameter
Hammerhead (Tantalum LE)44mm
Black Bay One 3131mm
Power Reserve
Hammerhead (Tantalum LE)40h
Black Bay One 3150h
Water Resistance
Hammerhead (Tantalum LE)300m
Black Bay One 31100m
MSRP
Hammerhead (Tantalum LE)$1,499
Black Bay One 31$4,600

Full specifications

Case

8 specs
Diameter
44mm
31mm
Thickness
13mm
9.5mm
Lug-to-Lug
44mm
46mm
Lug Width
22mm
17mm
Material
Titanium
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
300m
100m
Caseback
Solid
Solid screw-down

Crystal & Dial

2 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
Tantalum LE
Anthracite

Movement

2 specs
Caliber
Seiko NH35
MT5201
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$1,499
$4,600

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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.

Zelos Hammerhead (Tantalum LE)

The Zelos Hammerhead (Tantalum LE) features a forged carbon dial and bezel insert with infused lume. On balance, owners and reviewers rate the Zelos Hammerhead (Tantalum LE) highly for its unique material composition and substantial feel.

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.

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