Side by side

Oak & Oscar The Humboldt GMT USSS EditionvsSeiko Prospex SPEEDTIMER Seiko 145th Anniversary 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 differ
Diameter
The Humboldt GMT USSS Edition39.5mm
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition42mm
Power Reserve
The Humboldt GMT USSS Edition56 hoursh
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition45h
Water Resistance
The Humboldt GMT USSS Edition200m
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition100m
MSRP
The Humboldt GMT USSS Edition$2,200
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition$2,500

Full specifications

Case

7 specs
Category
GMT
Chronograph
Diameter
39.5mm
42mm
Thickness
12.5mm
14.6mm
Lug-to-Lug
46.8mm
49.5mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
100m
Caseback
Engraved
Solid

Crystal & Dial

3 specs
Crystal 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 specs
Caliber
Sellita SW330
8R48
Power Reserve
56 hoursh
45h
Jewels
25
34

Pricing

1 specs
MSRP
$2,200
$2,500

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