Side by side

Zero West M1 SeriesvsZero 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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M1 Series
Zero WestM1 Series
MSRP $3,600
S4 Blackout P9427 Spitfire
Zero WestS4 Blackout P9427 Spitfire
Buy from Zero West ↗
Buy used on eBay ↗
Buy from Zero West ↗
Buy used on eBay ↗

At a glance

7 of 29 specs differ
Diameter
M1 Series41mm
S4 Blackout P9427 Spitfire44mm
Power Reserve
M1 Series41h
S4 Blackout P9427 Spitfire38h
Water Resistance
M1 Series100m
S4 Blackout P9427 Spitfire100m
MSRP
M1 Series$3,600
S4 Blackout P9427 Spitfire—

Full specifications

Case

3 specs
Diameter
41mm
44mm
Thickness
13.5mm
14.1mm
Lug-to-Lug
46mm
49.6mm

Crystal & Dial

1 specs
Dial Color
—
Black

Movement

2 specs
Caliber
Sellita SW200-1
ETA 2824
Power Reserve
41h
38h

Pricing

1 specs
MSRP
$3,600
—
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Zero West M1 Mosquito (44mm)vsZero West S4 Blackout P9427 SpitfireCircula Watches AquaSport IIvsZero West S4 Blackout P9427 SpitfirePompeak Sub-AquaticvsZero West S4 Blackout P9427 SpitfireChronotechna NanoBlackvsZero West S4 Blackout P9427 SpitfireZero West M1 SeriesvsZero West RAF-C (1940)Zero West L1 1884 LongitudevsZero West M1 Series
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