Side by side
Oak & Oscar The Humboldt GMT TitaniumvsSeiko 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
16 of 29 specs differDiameter
The Humboldt GMT Titanium39.5mm
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition42.5mm
Power Reserve
The Humboldt GMT Titanium56 hoursh
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition45h
Water Resistance
The Humboldt GMT Titanium200m
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition100m
MSRP
The Humboldt GMT Titanium$2,950
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
Grade 5 Titanium
Stainless Steel
Water Resistance
200m
100m
Caseback
Solid screw-down
Solid
Crystal & Dial
4 specsCrystal Shape
Double-domed
Curved
AR Coating
Underside
Anti-reflective coating on inner surface
Dial Color
Green
Black
Lume
Super-LumiNova
LumiBrite on hands and index(es)
Movement
4 specsCaliber
Sellita SW330
8R46
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
45h
Jewels
25
34
Pricing
1 specsMSRP
$2,950
$3,000
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