Side by side
Oak & Oscar The Humboldt GMT USSS EditionvsSeiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited 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
The Humboldt GMT USSS Edition39.5mm
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition42.5mm
Power Reserve
The Humboldt GMT USSS Edition56 hoursh
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition45h
Water Resistance
The Humboldt GMT USSS Edition200m
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition100m
MSRP
The Humboldt GMT USSS Edition$2,200
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition$3,000
Full specifications
Case
7 specsCategory
GMT
Chronograph
Diameter
39.5mm
42.5mm
Thickness
12.5mm
15.1mm
Lug-to-Lug
46.8mm
50mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
100m
Caseback
Engraved
Solid
Crystal & Dial
3 specsCrystal Shape
Double-domed
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
Super-LumiNova BGW9
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Sellita SW330
8R46
Power Reserve
56 hoursh
45h
Jewels
25
34
Pricing
1 specsMSRP
$2,200
$3,000
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