Which is cheaper, the Seestern S471 Double Crown Diver or the Spinnaker Dumas Automatic?

At MSRP the Seestern S471 Double Crown Diver is the cheaper of the two at $179, against $239 for the Spinnaker Dumas Automatic — a $60 gap before any retailer discounting.

Which is bigger, the Seestern S471 Double Crown Diver or the Spinnaker Dumas Automatic?

The Spinnaker Dumas Automatic wears larger at 44mm versus 38mm for the Seestern S471 Double Crown Diver — a 6mm difference across the dial.

Which has better water resistance, the Seestern S471 Double Crown Diver or the Spinnaker Dumas Automatic?

The Spinnaker Dumas Automatic is rated to 300m versus 100m for the Seestern S471 Double Crown Diver.

Which has a longer power reserve, the Seestern S471 Double Crown Diver or the Spinnaker Dumas Automatic?

The Spinnaker Dumas Automatic carries a 40-hour power reserve against 35h+ hours on the Seestern S471 Double Crown Diver.

What movement does the Seestern S471 Double Crown Diver run compared to the Spinnaker Dumas Automatic?

Both watches run automatic movements — the Seestern S471 Double Crown Diver uses the Miyota 8215 and the Spinnaker Dumas Automatic uses the SII NH35A.

Side by side

Seestern S471 Double Crown DivervsSpinnaker Dumas Automatic

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

Seestern S471 Double Crown Diver

S471

MSRP $179

Spinnaker Dumas Automatic

dumas-blue-yonder-sp-5081-dd

MSRP $239

At a glance

11 of 29 specs differ

Diameter

S471 Double Crown Diver38mm

Dumas Automatic44mm

Power Reserve

S471 Double Crown Diver35h+h

Dumas Automatic40h

Water Resistance

S471 Double Crown Diver100m

Dumas Automatic300m

MSRP

S471 Double Crown Diver$179

Dumas Automatic$239

Full specifications

Case

5 specs

Diameter

38mm

44mm

Thickness

12mm

15mm

Lug-to-Lug

40.3mm

48mm

Lug Width

20mm

22mm

Water Resistance

100m

300m

Movement

5 specs

Caliber

Miyota 8215

SII NH35A

Beat Rate

3 vph

28,800 vph

Power Reserve

35h+h

40h

Jewels

Complications

Date

None

Pricing

1 specs

MSRP

$179

$239

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