Side by side
Seiko Prospex SeavsOak & Oscar The Humboldt GMT USSS Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
Prospex Sea42mm
The Humboldt GMT USSS Edition39.5mm
Power Reserve
Prospex Sea72h
The Humboldt GMT USSS Edition56 hoursh
Water Resistance
Prospex Sea300m
The Humboldt GMT USSS Edition200m
MSRP
Prospex Sea—
The Humboldt GMT USSS Edition$2,200
Full specifications
Case
7 specsCategory
Diver
GMT
Diameter
42mm
39.5mm
Thickness
13.3mm
12.5mm
Lug-to-Lug
48.6mm
46.8mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m
Caseback
Solid
Engraved
Crystal & Dial
3 specsCrystal Shape
Flat
Double-domed
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova BGW9
Movement
3 specsCaliber
6R54
Sellita SW330
Power Reserve
72h
56 hoursh
Jewels
24
25
Pricing
1 specsMSRP
—
$2,200
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