Which is cheaper, the Spinnaker Dumas Automatic or the Grand Seiko STGF387?

At MSRP the Spinnaker Dumas Automatic is the cheaper of the two at $239, against $4,200 for the Grand Seiko STGF387 — a $3,961 gap before any retailer discounting.

Which is bigger, the Spinnaker Dumas Automatic or the Grand Seiko STGF387?

The Spinnaker Dumas Automatic wears larger at 44mm versus 26mm for the Grand Seiko STGF387 — a 18mm difference across the dial.

Which has better water resistance, the Spinnaker Dumas Automatic or the Grand Seiko STGF387?

The Spinnaker Dumas Automatic is rated to 300m versus 100m for the Grand Seiko STGF387.

What movement does the Spinnaker Dumas Automatic run compared to the Grand Seiko STGF387?

The Spinnaker Dumas Automatic runs a automatic caliber (SII NH35A), while the Grand Seiko STGF387 runs a quartz (4J51).

Side by side

Spinnaker Dumas AutomaticvsGrand Seiko STGF387

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

Spinnaker Dumas Automatic

dumas-blue-yonder-sp-5081-dd

MSRP $239

Grand Seiko STGF387

stgf387g

MSRP $4,200

At a glance

12 of 29 specs differ

Diameter

Dumas Automatic44mm

STGF38726mm

Power Reserve

Dumas Automatic40h

STGF38740h

Water Resistance

Dumas Automatic300m

STGF387100m

MSRP

Dumas Automatic$239

STGF387$4,200

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Dial Color

Blue

Black

Movement

2 specs

Caliber

SII NH35A

4J51

Type

Automatic

Quartz

Pricing

1 specs

MSRP

$239

$4,200

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Spinnaker Dumas AutomaticvsGrand Seiko STGF387

At a glance

Full specifications

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