Which is cheaper, the Nivada Grenchen Antarctic Spider or the Helgray Poseidon Diver (Automatic)?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $945 for the Nivada Grenchen Antarctic Spider — a $696 gap before any retailer discounting.

Which is bigger, the Nivada Grenchen Antarctic Spider or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) wears larger at 40mm versus 38mm for the Nivada Grenchen Antarctic Spider — a 2mm difference across the dial.

Which has better water resistance, the Nivada Grenchen Antarctic Spider or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 200m for the Nivada Grenchen Antarctic Spider.

Which has a longer power reserve, the Nivada Grenchen Antarctic Spider or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) 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 Helgray Poseidon Diver (Automatic)?

Both watches run automatic movements — the Nivada Grenchen Antarctic Spider uses the Sellita SW200 and the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty.

Side by side

Nivada Grenchen Antarctic SpidervsHelgray Poseidon Diver (Automatic)

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

Nivada Grenchen Antarctic Spider

Antarctic Spider

MSRP $945

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

At a glance

11 of 29 specs differ

Diameter

Antarctic Spider38mm

Poseidon Diver (Automatic)40mm

Power Reserve

Antarctic Spider38h

Poseidon Diver (Automatic)40h

Water Resistance

Antarctic Spider200m

Poseidon Diver (Automatic)300m

MSRP

Antarctic Spider$945

Poseidon Diver (Automatic)$249

Full specifications

Case

5 specs

Crystal & Dial

2 specs

Dial Color

White

Black

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

Sellita SW200

NH35 Warranty

Power Reserve

38h

40h

Complications

GMT, Date

None

Pricing

1 specs

MSRP

$945

$249

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