Side by side
Oak & Oscar The Humboldt GMT USSS EditionvsRZE Fortitude GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
The Humboldt GMT USSS Edition39.5mm
Fortitude GMT41mm
Power Reserve
The Humboldt GMT USSS Edition56 hoursh
Fortitude GMT40h
Water Resistance
The Humboldt GMT USSS Edition200m
Fortitude GMT200m
MSRP
The Humboldt GMT USSS Edition$2,200
Fortitude GMT$719
Full specifications
Case
5 specsDiameter
39.5mm
41mm
Thickness
12.5mm
12mm
Lug-to-Lug
46.8mm
47mm
Material
316L Stainless Steel
Grade 5 Titanium
Caseback
Engraved
Solid
Crystal & Dial
3 specsCrystal Shape
Double-domed
Flat
AR Coating
Inner
Underside
Dial Color
Black
Red
Movement
3 specsCaliber
Sellita SW330
Miyota 9075
Power Reserve
56 hoursh
40h
Complications
None
GMT
Pricing
1 specsMSRP
$2,200
$719
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