Side by side
Oak & Oscar The Humboldt GMT USSS EditionvsSerket Watch Co Reef Mariana
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
Reef Mariana40mm
Power Reserve
The Humboldt GMT USSS Edition56 hoursh
Reef Mariana—
Water Resistance
The Humboldt GMT USSS Edition200m
Reef Mariana200m
MSRP
The Humboldt GMT USSS Edition$2,200
Reef Mariana$449
Full specifications
Case
6 specsCategory
GMT
—
Diameter
39.5mm
40mm
Thickness
12.5mm
13.2mm
Lug-to-Lug
46.8mm
47.5mm
Material
316L Stainless Steel
Stainless Steel
Caseback
Engraved
Solid
Crystal & Dial
3 specsCrystal Shape
Double-domed
Flat
Dial Color
Black
Orange
Lume
Super-LumiNova BGW9
BGW9
Movement
2 specsCaliber
Sellita SW330
Seiko NH35
Power Reserve
56 hoursh
—
Pricing
1 specsMSRP
$2,200
$449
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