Which is cheaper, the Spinnaker Dumas Automatic or the William Wood International Association of Fire?

At MSRP the Spinnaker Dumas Automatic is the cheaper of the two at $239, against $820 for the William Wood International Association of Fire — a $581 gap before any retailer discounting.

Which is bigger, the Spinnaker Dumas Automatic or the William Wood International Association of Fire?

The Spinnaker Dumas Automatic wears larger at 44mm versus 41mm for the William Wood International Association of Fire — a 3mm difference across the dial.

Which has better water resistance, the Spinnaker Dumas Automatic or the William Wood International Association of Fire?

The Spinnaker Dumas Automatic is rated to 300m versus 100m for the William Wood International Association of Fire.

What movement does the Spinnaker Dumas Automatic run compared to the William Wood International Association of Fire?

Both watches run automatic movements — the Spinnaker Dumas Automatic uses the SII NH35A and the William Wood International Association of Fire uses the Seiko NH35.

Side by side

Spinnaker Dumas AutomaticvsWilliam Wood International Association of Fire

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

William Wood International Association of Fire

william-wood-iafc

MSRP $820

At a glance

8 of 29 specs differ

Diameter

Dumas Automatic44mm

International Association of Fire41mm

Power Reserve

Dumas Automatic40h

International Association of Fire40h

Water Resistance

Dumas Automatic300m

International Association of Fire100m

MSRP

Dumas Automatic$239

International Association of Fire$820

Full specifications

Case

4 specs

Diameter

44mm

41mm

Lug-to-Lug

48mm

49mm

Lug Width

22mm

20mm

Water Resistance

300m

100m

Crystal & Dial

2 specs

Crystal

Sapphire

Domed Sapphire

Dial Color

Blue

Standard

Movement

1 specs

Caliber

SII NH35A

Seiko NH35

Pricing

1 specs

MSRP

$239

$820

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