Which is cheaper, the Seestern S424 Full Lume Pilot or the Spinnaker Dumas Automatic?

At MSRP the Spinnaker Dumas Automatic is the cheaper of the two at $239, against $299 for the Seestern S424 Full Lume Pilot — a $60 gap before any retailer discounting.

Which is bigger, the Seestern S424 Full Lume Pilot or the Spinnaker Dumas Automatic?

The Spinnaker Dumas Automatic wears larger at 44mm versus 38mm for the Seestern S424 Full Lume Pilot — a 6mm difference across the dial.

Which has better water resistance, the Seestern S424 Full Lume Pilot or the Spinnaker Dumas Automatic?

The Spinnaker Dumas Automatic is rated to 300m versus 50m for the Seestern S424 Full Lume Pilot.

Which has a longer power reserve, the Seestern S424 Full Lume Pilot or the Spinnaker Dumas Automatic?

The Seestern S424 Full Lume Pilot carries a 41-hour power reserve against 40 hours on the Spinnaker Dumas Automatic.

What movement does the Seestern S424 Full Lume Pilot run compared to the Spinnaker Dumas Automatic?

Both watches run automatic movements — the Seestern S424 Full Lume Pilot uses the Seiko NH35A and the Spinnaker Dumas Automatic uses the SII NH35A.

Side by side

Seestern S424 Full Lume PilotvsSpinnaker Dumas Automatic

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

Seestern S424 Full Lume Pilot

S424 V1

MSRP $299

Spinnaker Dumas Automatic

dumas-blue-yonder-sp-5081-dd

MSRP $239

At a glance

14 of 29 specs differ

Diameter

S424 Full Lume Pilot38mm

Dumas Automatic44mm

Power Reserve

S424 Full Lume Pilot41h

Dumas Automatic40h

Water Resistance

S424 Full Lume Pilot50m

Dumas Automatic300m

MSRP

S424 Full Lume Pilot$299

Dumas Automatic$239

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Dial Color

Black

Blue

Lume

Full lume

None

Movement

5 specs

Caliber

Seiko NH35A

SII NH35A

Beat Rate

21,600 vph

28,800 vph

Power Reserve

41h

40h

Jewels

Complications

GMT

None

Pricing

1 specs

MSRP

$299

$239

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