Side by side

Oak & Oscar The Humboldt GMT TitaniumvsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

The Humboldt GMT Titanium
Oak & OscarThe Humboldt GMT Titanium
MSRP $2,950
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition
SeikoProspex SPEEDTIMER Mechanical Datsun 240Z Limited Edition
MSRP $1,150

At a glance

14 of 29 specs differ
Diameter
The Humboldt GMT Titanium39.5mm
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition39.5mm
Power Reserve
The Humboldt GMT Titanium56 hoursh
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition72h
Water Resistance
The Humboldt GMT Titanium200m
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition200m
MSRP
The Humboldt GMT Titanium$2,950
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition$1,150

Full specifications

Case

5 specs
Category
GMT
Chronograph
Thickness
12.5mm
12mm
Lug-to-Lug
46.8mm
44.5mm
Material
Grade 5 Titanium
Stainless Steel
Caseback
Solid screw-down
Solid

Crystal & Dial

4 specs
Crystal 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 specs
Caliber
Sellita SW330
6R55
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
72h
Jewels
25
24

Pricing

1 specs
MSRP
$2,950
$1,150

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