Side by side
Oak & Oscar The Humboldt GMT TitaniumvsGrand Seiko SBGJ237
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
The Humboldt GMT Titanium39.5mm
SBGJ23744.2mm
Power Reserve
The Humboldt GMT Titanium56 hoursh
SBGJ23755h
Water Resistance
The Humboldt GMT Titanium200m
SBGJ237200m
MSRP
The Humboldt GMT Titanium$2,950
SBGJ237$7,600
Full specifications
Case
6 specsDiameter
39.5mm
44.2mm
Thickness
12.5mm
14.4mm
Lug-to-Lug
46.8mm
50.6mm
Lug Width
20mm
21mm
Material
Grade 5 Titanium
Stainless Steel
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
3 specsCaliber
Sellita SW330
9S86
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
55h
Pricing
1 specsMSRP
$2,950
$7,600
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