Side by side
Oak & Oscar The Humboldt GMT USSS EditionvsGrand Seiko SBGA375
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 USSS Edition39.5mm
SBGA37540mm
Power Reserve
The Humboldt GMT USSS Edition56 hoursh
SBGA37572h
Water Resistance
The Humboldt GMT USSS Edition200m
SBGA375100m
MSRP
The Humboldt GMT USSS Edition$2,200
SBGA375$5,600
Full specifications
Case
7 specsCategory
GMT
Dress
Diameter
39.5mm
40mm
Lug-to-Lug
46.8mm
46.2mm
Lug Width
20mm
19mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
100m
Caseback
Engraved
Solid
Crystal & Dial
3 specsCrystal Shape
Double-domed
Flat
AR Coating
Inner
Yes
Lume
Super-LumiNova BGW9
None
Movement
3 specsCaliber
Sellita SW330
9R65
Type
Automatic
Spring Drive
Power Reserve
56 hoursh
72h
Pricing
1 specsMSRP
$2,200
$5,600
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