Which is cheaper, the Helgray Poseidon Diver (Automatic) or the Seiko Presage Classic Series?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $950 for the Seiko Presage Classic Series — a $701 gap before any retailer discounting.

Which is bigger, the Helgray Poseidon Diver (Automatic) or the Seiko Presage Classic Series?

The Helgray Poseidon Diver (Automatic) wears larger at 40mm versus 36mm for the Seiko Presage Classic Series — a 4mm difference across the dial.

Which has better water resistance, the Helgray Poseidon Diver (Automatic) or the Seiko Presage Classic Series?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 10m for the Seiko Presage Classic Series.

Which has a longer power reserve, the Helgray Poseidon Diver (Automatic) or the Seiko Presage Classic Series?

The Seiko Presage Classic Series carries a 72-hour power reserve against 40 hours on the Helgray Poseidon Diver (Automatic).

What movement does the Helgray Poseidon Diver (Automatic) run compared to the Seiko Presage Classic Series?

Both watches run automatic movements — the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty and the Seiko Presage Classic Series uses the 6R51.

Side by side

Helgray Poseidon Diver (Automatic)vsSeiko Presage Classic Series

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

Seiko Presage Classic Series

spb521j1

MSRP $950

At a glance

12 of 29 specs differ

Diameter

Poseidon Diver (Automatic)40mm

Presage Classic Series36mm

Power Reserve

Poseidon Diver (Automatic)40h

Presage Classic Series72h

Water Resistance

Poseidon Diver (Automatic)300m

Presage Classic Series100m

MSRP

Poseidon Diver (Automatic)$249

Presage Classic Series$950

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Movement

3 specs

Caliber

NH35 Warranty

6R51

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$249

$950

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