Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Zero West S4 Blackout P9427 Spitfire?

The Zero West S4 Blackout P9427 Spitfire wears larger at 44mm versus 39mm for the Serica Ref. 5330 Diving Chronometer Date — a 5mm difference across the dial.

Which has better water resistance, the Serica Ref. 5330 Diving Chronometer Date or the Zero West S4 Blackout P9427 Spitfire?

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 100m for the Zero West S4 Blackout P9427 Spitfire.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Zero West S4 Blackout P9427 Spitfire?

The Serica Ref. 5330 Diving Chronometer Date carries a 42-hour power reserve against 38 hours on the Zero West S4 Blackout P9427 Spitfire.

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the Zero West S4 Blackout P9427 Spitfire?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Zero West S4 Blackout P9427 Spitfire uses the ETA 2824.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsZero West S4 Blackout P9427 Spitfire

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

Add a watch

Serica Ref. 5330 Diving Chronometer Date

5330-chronometre-plongee-date

MSRP $2,005

Zero West S4 Blackout P9427 Spitfire

s4-blackout-p9427-1940

At a glance

12 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

S4 Blackout P9427 Spitfire44mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

S4 Blackout P9427 Spitfire38h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

S4 Blackout P9427 Spitfire100m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

S4 Blackout P9427 Spitfire—

Full specifications

Case

6 specs

Crystal & Dial

2 specs

AR Coating

Yes

Inner

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

SoProd M100

ETA 2824

Power Reserve

42h

38h

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

—

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Serica Ref. 5330 Diving Chronometer DatevsZero West S4 Blackout P9427 Spitfire

At a glance

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