Which is cheaper, the Fortis Flieger F-39 or the William Wood International Association of Fire?

At MSRP the William Wood International Association of Fire is the cheaper of the two at $820, against $2,530 for the Fortis Flieger F-39 — a $1,710 gap before any retailer discounting.

Which is bigger, the Fortis Flieger F-39 or the William Wood International Association of Fire?

The William Wood International Association of Fire wears larger at 41mm versus 39mm for the Fortis Flieger F-39 — a 2mm difference across the dial.

Which has better water resistance, the Fortis Flieger F-39 or the William Wood International Association of Fire?

The Fortis Flieger F-39 is rated to 200m versus 100m for the William Wood International Association of Fire.

Which has a longer power reserve, the Fortis Flieger F-39 or the William Wood International Association of Fire?

The William Wood International Association of Fire carries a 40-hour power reserve against 38 hours on the Fortis Flieger F-39.

What movement does the Fortis Flieger F-39 run compared to the William Wood International Association of Fire?

Both watches run automatic movements — the Fortis Flieger F-39 uses the Sellita SW200-1 and the William Wood International Association of Fire uses the Seiko NH35.

Side by side

Fortis Flieger F-39vsWilliam Wood International Association of Fire

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

Fortis Flieger F-39

F-39

MSRP $2,530

William Wood International Association of Fire

william-wood-iafc

MSRP $820

At a glance

12 of 29 specs differ

Diameter

Flieger F-3939mm

International Association of Fire41mm

Power Reserve

Flieger F-3938h

International Association of Fire40h

Water Resistance

Flieger F-39200m

International Association of Fire100m

MSRP

Flieger F-39$2,530

International Association of Fire$820

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Crystal

Sapphire

Domed Sapphire

Dial Color

Black

Standard

Movement

3 specs

Caliber

Sellita SW200-1

Seiko NH35

Power Reserve

38h

40h

Jewels

Pricing

1 specs

MSRP

$2,530

$820

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