Which is cheaper, the Helgray Poseidon Diver (Automatic) or the Seiko King Seiko KSK?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $3,300 for the Seiko King Seiko KSK — a $3,051 gap before any retailer discounting.

Which is bigger, the Helgray Poseidon Diver (Automatic) or the Seiko King Seiko KSK?

The Helgray Poseidon Diver (Automatic) wears larger at 40mm versus 38.6mm for the Seiko King Seiko KSK — a 1.4mm difference across the dial.

Which has better water resistance, the Helgray Poseidon Diver (Automatic) or the Seiko King Seiko KSK?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 5m for the Seiko King Seiko KSK.

Which has a longer power reserve, the Helgray Poseidon Diver (Automatic) or the Seiko King Seiko KSK?

The Seiko King Seiko KSK carries a 45-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 King Seiko KSK?

Both watches run automatic movements — the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty and the Seiko King Seiko KSK uses the 6L35.

Side by side

Helgray Poseidon Diver (Automatic)vsSeiko King Seiko KSK

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 King Seiko KSK

sje089j1

MSRP $3,300

At a glance

12 of 29 specs differ

Diameter

Poseidon Diver (Automatic)40mm

King Seiko KSK38.6mm

Power Reserve

Poseidon Diver (Automatic)40h

King Seiko KSK45h

Water Resistance

Poseidon Diver (Automatic)300m

King Seiko KSK50m

MSRP

Poseidon Diver (Automatic)$249

King Seiko KSK$3,300

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Crystal Shape

Flat

Box

AR Coating

Inner

Anti-reflective coating on inner surface

Movement

3 specs

Caliber

NH35 Warranty

6L35

Power Reserve

40h

45h

Jewels

Pricing

1 specs

MSRP

$249

$3,300

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