Side by side
Oak & Oscar The Humboldt GMT TitaniumvsGrand Seiko SBGX355
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
17 of 29 specs differDiameter
The Humboldt GMT Titanium39.5mm
SBGX35537mm
Power Reserve
The Humboldt GMT Titanium56 hoursh
SBGX35540h
Water Resistance
The Humboldt GMT Titanium200m
SBGX355100m
MSRP
The Humboldt GMT Titanium$2,950
SBGX355$4,100
Full specifications
Case
8 specsCategory
GMT
Dress
Diameter
39.5mm
37mm
Thickness
12.5mm
10.6mm
Lug-to-Lug
46.8mm
44.6mm
Lug Width
20mm
19mm
Material
Grade 5 Titanium
Titanium
Water Resistance
200m
100m
Caseback
Solid screw-down
Solid
Crystal & Dial
4 specsCrystal Shape
Double-domed
Flat
AR Coating
Underside
Yes
Dial Color
Green
Black
Lume
Super-LumiNova
None
Movement
4 specsCaliber
Sellita SW330
9F62
Type
Automatic
Quartz
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h
Pricing
1 specsMSRP
$2,950
$4,100
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