Side by side
Oak & Oscar The Humboldt GMT USSS EditionvsGrand Seiko SBGJ237
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
The Humboldt GMT USSS Edition39.5mm
SBGJ23744.2mm
Power Reserve
The Humboldt GMT USSS Edition56 hoursh
SBGJ23755h
Water Resistance
The Humboldt GMT USSS Edition200m
SBGJ237200m
MSRP
The Humboldt GMT USSS Edition$2,200
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
316L Stainless Steel
Stainless Steel
Caseback
Engraved
Solid
Crystal & Dial
3 specsCrystal Shape
Double-domed
Flat
AR Coating
Inner
Yes
Lume
Super-LumiNova BGW9
None
Movement
2 specsCaliber
Sellita SW330
9S86
Power Reserve
56 hoursh
55h
Pricing
1 specsMSRP
$2,200
$7,600
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