Side by side
Oak & Oscar The Humboldt GMT TitaniumvsWolbrook Douglas Grand Prix Racing
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 Titanium39.5mm
Douglas Grand Prix Racing40mm
Power Reserve
The Humboldt GMT Titanium56 hoursh
Douglas Grand Prix Racing40h
Water Resistance
The Humboldt GMT Titanium200m
Douglas Grand Prix Racing100m
MSRP
The Humboldt GMT Titanium$2,950
Douglas Grand Prix Racing$442
Full specifications
Case
7 specsCategory
GMT
Racing
Diameter
39.5mm
40mm
Thickness
12.5mm
13mm
Lug-to-Lug
46.8mm
—
Material
Grade 5 Titanium
316L Stainless Steel
Water Resistance
200m
100m
Caseback
Solid screw-down
Solid
Crystal & Dial
4 specsCrystal Shape
Double-domed
Flat
AR Coating
Underside
Inner
Dial Color
Green
Steel
Lume
Super-LumiNova
None
Movement
3 specsCaliber
Sellita SW330
Miyota 8315
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h
Pricing
1 specsMSRP
$2,950
$442
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