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Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited EditionvsZero West S4 Blackout P9427 Spitfire

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

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Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition
SeikoProspex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition
MSRP $3,000
S4 Blackout P9427 Spitfire
Zero WestS4 Blackout P9427 Spitfire
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At a glance

12 of 29 specs differ
Diameter
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition42.5mm
S4 Blackout P9427 Spitfire44mm
Power Reserve
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition45h
S4 Blackout P9427 Spitfire38h
Water Resistance
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition100m
S4 Blackout P9427 Spitfire100m
MSRP
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition$3,000
S4 Blackout P9427 Spitfire—

Full specifications

Case

5 specs
Category
Chronograph
—
Diameter
42.5mm
44mm
Thickness
15.1mm
14.1mm
Lug-to-Lug
50mm
49.6mm
Lug Width
20mm
22mm

Crystal & Dial

3 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
8R46
ETA 2824
Power Reserve
45h
38h
Jewels
34
25

Pricing

1 specs
MSRP
$3,000
—
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