Which is cheaper, the Helgray Poseidon Diver (Automatic) or the Spinnaker Challenger Automatic?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $289 for the Spinnaker Challenger Automatic — a $40 gap before any retailer discounting.

Which is bigger, the Helgray Poseidon Diver (Automatic) or the Spinnaker Challenger Automatic?

The Spinnaker Challenger Automatic wears larger at 42mm versus 40mm for the Helgray Poseidon Diver (Automatic) — a 2mm difference across the dial.

Which has better water resistance, the Helgray Poseidon Diver (Automatic) or the Spinnaker Challenger Automatic?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 200m for the Spinnaker Challenger Automatic.

What movement does the Helgray Poseidon Diver (Automatic) run compared to the Spinnaker Challenger Automatic?

Both watches run automatic movements — the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty and the Spinnaker Challenger Automatic uses the SII NH35A.

Side by side

Helgray Poseidon Diver (Automatic)vsSpinnaker Challenger Automatic

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

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

Spinnaker Challenger Automatic

challenger-automatic-depth-blue-sp-5159-11

MSRP $289

At a glance

9 of 29 specs differ

Diameter

Poseidon Diver (Automatic)40mm

Challenger Automatic42mm

Power Reserve

Poseidon Diver (Automatic)40h

Challenger Automatic40h

Water Resistance

Poseidon Diver (Automatic)300m

Challenger Automatic200m

MSRP

Poseidon Diver (Automatic)$249

Challenger Automatic$289

Full specifications

Case

6 specs

Diameter

40mm

42mm

Thickness

12mm

19mm

Lug-to-Lug

46mm

49.5mm

Lug Width

20mm

22mm

Material

Stainless Steel

316L Stainless Steel

Water Resistance

300m

200m

Crystal & Dial

1 specs

Dial Color

Black

Blue

Movement

1 specs

Caliber

NH35 Warranty

SII NH35A

Pricing

1 specs

MSRP

$249

$289

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