Which is cheaper, the Nivada Grenchen Antarctic Spider 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 $945 for the Nivada Grenchen Antarctic Spider — a $125 gap before any retailer discounting.

Which is bigger, the Nivada Grenchen Antarctic Spider or the William Wood International Association of Fire?

The William Wood International Association of Fire wears larger at 41mm versus 38mm for the Nivada Grenchen Antarctic Spider — a 3mm difference across the dial.

Which has better water resistance, the Nivada Grenchen Antarctic Spider or the William Wood International Association of Fire?

The Nivada Grenchen Antarctic Spider is rated to 200m versus 100m for the William Wood International Association of Fire.

Which has a longer power reserve, the Nivada Grenchen Antarctic Spider 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 Nivada Grenchen Antarctic Spider.

What movement does the Nivada Grenchen Antarctic Spider run compared to the William Wood International Association of Fire?

Both watches run automatic movements — the Nivada Grenchen Antarctic Spider uses the Sellita SW200 and the William Wood International Association of Fire uses the Seiko NH35.

Side by side

Nivada Grenchen Antarctic SpidervsWilliam Wood International Association of Fire

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

Nivada Grenchen Antarctic Spider

Antarctic Spider

MSRP $945

William Wood International Association of Fire

william-wood-iafc

MSRP $820

At a glance

14 of 29 specs differ

Diameter

Antarctic Spider38mm

International Association of Fire41mm

Power Reserve

Antarctic Spider38h

International Association of Fire40h

Water Resistance

Antarctic Spider200m

International Association of Fire100m

MSRP

Antarctic Spider$945

International Association of Fire$820

Full specifications

Case

7 specs

Crystal & Dial

3 specs

Crystal

Sapphire

Domed Sapphire

Dial Color

White

Standard

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

Sellita SW200

Seiko NH35

Power Reserve

38h

40h

Complications

GMT, Date

None

Pricing

1 specs

MSRP

$945

$820

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