Side by side
Oak & Oscar The Humboldt GMT TitaniumvsSpinnaker Dumas GMT
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
Dumas GMT44mm
Power Reserve
The Humboldt GMT Titanium56 hoursh
Dumas GMT40h
Water Resistance
The Humboldt GMT Titanium200m
Dumas GMT300m
MSRP
The Humboldt GMT Titanium$2,950
Dumas GMT$399
Full specifications
Case
7 specsDiameter
39.5mm
44mm
Thickness
12.5mm
15mm
Lug-to-Lug
46.8mm
48mm
Lug Width
20mm
22mm
Material
Grade 5 Titanium
316L Stainless Steel
Water Resistance
200m
300m
Caseback
Solid screw-down
Solid
Crystal & Dial
4 specsCrystal Shape
Double-domed
Flat
AR Coating
Underside
Inner
Dial Color
Green
Blue
Lume
Super-LumiNova
None
Movement
3 specsCaliber
Sellita SW330
Seiko NH34A
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h
Pricing
1 specsMSRP
$2,950
$399
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