Side by side
Oak & Oscar The Humboldt GMT TitaniumvsRZE 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 Titanium39.5mm
Fortitude GMT41mm
Power Reserve
The Humboldt GMT Titanium56 hoursh
Fortitude GMT40h
Water Resistance
The Humboldt GMT Titanium200m
Fortitude GMT200m
MSRP
The Humboldt GMT Titanium$2,950
Fortitude GMT$719
Full specifications
Case
4 specsDiameter
39.5mm
41mm
Thickness
12.5mm
12mm
Lug-to-Lug
46.8mm
47mm
Caseback
Solid screw-down
Solid
Crystal & Dial
3 specsCrystal Shape
Double-domed
Flat
Dial Color
Green
Red
Lume
Super-LumiNova
Super-LumiNova BGW9
Movement
4 specsCaliber
Sellita SW330
Miyota 9075
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h
Complications
None
GMT
Pricing
1 specsMSRP
$2,950
$719
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