Side by side

Oak & Oscar The Humboldt GMT USSS EditionvsGrand Seiko SBGP015

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

The Humboldt GMT USSS Edition
Oak & OscarThe Humboldt GMT USSS Edition
MSRP $2,200
SBGP015
Grand SeikoSBGP015
MSRP $3,800

At a glance

13 of 29 specs differ
Diameter
The Humboldt GMT USSS Edition39.5mm
SBGP01540mm
Power Reserve
The Humboldt GMT USSS Edition56 hoursh
SBGP01540h
Water Resistance
The Humboldt GMT USSS Edition200m
SBGP015200m
MSRP
The Humboldt GMT USSS Edition$2,200
SBGP015$3,800

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
39.5mm
40mm
Thickness
12.5mm
12.4mm
Lug-to-Lug
46.8mm
47.1mm
Material
316L Stainless Steel
Stainless Steel
Caseback
Engraved
Solid

Crystal & Dial

3 specs
Crystal Shape
Double-domed
Flat
AR Coating
Inner
Yes
Lume
Super-LumiNova BGW9
None

Movement

3 specs
Caliber
Sellita SW330
9F85
Type
Automatic
Quartz
Power Reserve
56 hoursh
40h

Pricing

1 specs
MSRP
$2,200
$3,800

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