Side by side

Bremont Altitude ChronographvsTudor Black Bay One 31

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

Altitude Chronograph
BremontAltitude Chronograph
MSRP $6,300
Black Bay One 31
TudorBlack Bay One 31
MSRP $4,600

At a glance

12 of 29 specs differ
Diameter
Altitude Chronograph42mm
Black Bay One 3131mm
Power Reserve
Altitude Chronograph40h
Black Bay One 3150h
Water Resistance
Altitude Chronograph100m
Black Bay One 31100m
MSRP
Altitude Chronograph$6,300
Black Bay One 31$4,600

Full specifications

Case

8 specs
Category
Chronograph
Diver
Diameter
42mm
31mm
Thickness
14.7mm
9.5mm
Lug-to-Lug
46mm
Lug Width
14.7mm
17mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Caseback
Solid
Solid screw-down

Crystal & Dial

1 specs
Dial Color
Silver
Anthracite

Movement

2 specs
Caliber
BE-50AE
MT5201
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$6,300
$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.

Bremont Altitude Chronograph

Owners note faint marks on the case sides and back, with minor wear and creasing on the strap. Reviewers flag the "DANGER EJECTION SEAT" wordmark on the dial as a divisive design choice that disrupts the MB series' usual stark tone, though they praise the improved smoothness and click precision of the Roto Click rotating bezel. On balance, the Bremont Altitude Chronograph elicits mixed reactions, with design elements like the dial text being a point of contention for 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.

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