Side by side
Oak & Oscar The Humboldt GMT TitaniumvsGrand Seiko SLGB003
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
The Humboldt GMT Titanium39.5mm
SLGB00337mm
Power Reserve
The Humboldt GMT Titanium56 hoursh
SLGB00372h
Water Resistance
The Humboldt GMT Titanium200m
SLGB003100m
MSRP
The Humboldt GMT Titanium$2,950
SLGB003$11,400
Full specifications
Case
7 specsCategory
GMT
Dress
Diameter
39.5mm
37mm
Thickness
12.5mm
11.4mm
Lug-to-Lug
46.8mm
44.3mm
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
9RB2
Type
Automatic
Spring Drive
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
72h
Pricing
1 specsMSRP
$2,950
$11,400
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