Side by side
Oak & Oscar The Humboldt GMT USSS EditionvsGrand Seiko SBGE307
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
The Humboldt GMT USSS Edition39.5mm
SBGE30744.5mm
Power Reserve
The Humboldt GMT USSS Edition56 hoursh
SBGE30772h
Water Resistance
The Humboldt GMT USSS Edition200m
SBGE307200m
MSRP
The Humboldt GMT USSS Edition$2,200
SBGE307$11,500
Full specifications
Case
6 specsDiameter
39.5mm
44.5mm
Thickness
12.5mm
14.9mm
Lug-to-Lug
46.8mm
50mm
Lug Width
20mm
23mm
Material
316L Stainless Steel
Titanium
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
9R66
Type
Automatic
Spring Drive
Power Reserve
56 hoursh
72h
Pricing
1 specsMSRP
$2,200
$11,500
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