Side by side

Tudor Black Bay One 31vsVario VARIO x RZE UltraHex Titanium Trench

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
VARIO x RZE UltraHex Titanium Trench
VarioVARIO x RZE UltraHex Titanium Trench
MSRP $499

At a glance

13 of 29 specs differ
Diameter
Black Bay One 3131mm
VARIO x RZE UltraHex Titanium Trench37mm
Power Reserve
Black Bay One 3150h
VARIO x RZE UltraHex Titanium Trench40h
Water Resistance
Black Bay One 31100m
VARIO x RZE UltraHex Titanium Trench100m
MSRP
Black Bay One 31$4,600
VARIO x RZE UltraHex Titanium Trench$499

Full specifications

Case

8 specs
Category
Diver
Field
Diameter
31mm
37mm
Thickness
9.5mm
10mm
Lug-to-Lug
46mm
45mm
Lug Width
17mm
18mm
Material
Stainless Steel
UltraHex Titanium
Finish
Polished + Satin
Brushed and polished
Caseback
Solid screw-down
Solid

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Anthracite
Yellow

Movement

2 specs
Caliber
MT5201
Miyota 82s5
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$4,600
$499

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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.

VARIO x RZE UltraHex Titanium Trench

Owners praise the VARIO x RZE UltraHex Titanium Trench for its price point and the dial's color-shifting effects, with one owner noting it as a great limited edition. A reviewer highlights its lightweight titanium case and sand-textured pink dial. Some with larger wrists may find its 36mm size compact. One owner dislikes the strap and notes the movement can occasionally be loud. Overall, owners and reviewers rate the VARIO x RZE UltraHex Titanium Trench highly for its unique dial and value at the price.

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