Side by side
Oak & Oscar The Humboldt GMT USSS EditionvsTudor Black Bay One 31
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
The Humboldt GMT USSS Edition39.5mm
Black Bay One 3131mm
Power Reserve
The Humboldt GMT USSS Edition56 hoursh
Black Bay One 3150h
Water Resistance
The Humboldt GMT USSS Edition200m
Black Bay One 31100m
MSRP
The Humboldt GMT USSS Edition$2,200
Black Bay One 31$4,600
Full specifications
Case
9 specsCategory
GMT
Diver
Diameter
39.5mm
31mm
Thickness
12.5mm
9.5mm
Lug-to-Lug
46.8mm
46mm
Lug Width
20mm
17mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
200m
100m
Caseback
Engraved
Solid screw-down
Crystal & Dial
3 specsCrystal Shape
Double-domed
Flat
Dial Color
Black
Anthracite
Lume
Super-LumiNova BGW9
None
Movement
2 specsCaliber
Sellita SW330
MT5201
Power Reserve
56 hoursh
50h
Pricing
1 specsMSRP
$2,200
$4,600
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