Side by side

Tudor Black Bay One 31vsZelos Thresher 44

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
Thresher 44
ZelosThresher 44
MSRP $549

At a glance

13 of 29 specs differ
Diameter
Black Bay One 3131mm
Thresher 4444mm
Power Reserve
Black Bay One 3150h
Thresher 4440h
Water Resistance
Black Bay One 31100m
Thresher 44500m
MSRP
Black Bay One 31$4,600
Thresher 44$549

Full specifications

Case

8 specs
Diameter
31mm
44mm
Thickness
9.5mm
12.8mm
Lug-to-Lug
46mm
44mm
Lug Width
17mm
22mm
Material
Stainless Steel
316L Stainless Steel
Finish
Polished + Satin
Brushed and polished
Water Resistance
100m
500m
Caseback
Solid screw-down
Solid

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Anthracite
Grey

Movement

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

Pricing

1 specs
MSRP
$4,600
$549

Follow this matchup

Get a note when Tudor Black Bay One 31 vs Zelos Thresher 44 gets more votes, a community discussion, or a price drop. No account needed.

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.

Zelos Thresher 44

Owners widely praise the Zelos Thresher 44, with one owner noting its finish has proven remarkably scratch-resistant. However, one owner found the finishing on their hammered grey variant not as well done as expected. The Zelos Thresher 44 with an agate dial sold out in 90 seconds, with one owner receiving theirs and noting the bracelet was fully wrapped. Overall, owners rate the Zelos Thresher 44 highly for its desirability and scratch-resistant finish.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.