Which is cheaper, the Helgray Poseidon Diver (Automatic) or the Seiko 5 Sports SKX series MOONEYES Limited Edition?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $420 for the Seiko 5 Sports SKX series MOONEYES Limited Edition — a $171 gap before any retailer discounting.

Which is bigger, the Helgray Poseidon Diver (Automatic) or the Seiko 5 Sports SKX series MOONEYES Limited Edition?

The Seiko 5 Sports SKX series MOONEYES Limited Edition wears larger at 42.5mm versus 40mm for the Helgray Poseidon Diver (Automatic) — a 2.5mm difference across the dial.

Which has better water resistance, the Helgray Poseidon Diver (Automatic) or the Seiko 5 Sports SKX series MOONEYES Limited Edition?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 10m for the Seiko 5 Sports SKX series MOONEYES Limited Edition.

Which has a longer power reserve, the Helgray Poseidon Diver (Automatic) or the Seiko 5 Sports SKX series MOONEYES Limited Edition?

The Seiko 5 Sports SKX series MOONEYES Limited Edition carries a 41-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 5 Sports SKX series MOONEYES Limited Edition?

Both watches run automatic movements — the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty and the Seiko 5 Sports SKX series MOONEYES Limited Edition uses the 4R36.

Side by side

Helgray Poseidon Diver (Automatic)vsSeiko 5 Sports SKX series MOONEYES Limited Edition

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 5 Sports SKX series MOONEYES Limited Edition

sbsa287j

MSRP $420

At a glance

12 of 29 specs differ

Diameter

Poseidon Diver (Automatic)40mm

5 Sports SKX series MOONEYES Limited Edition42.5mm

Power Reserve

Poseidon Diver (Automatic)40h

5 Sports SKX series MOONEYES Limited Edition41h

Water Resistance

Poseidon Diver (Automatic)300m

5 Sports SKX series MOONEYES Limited Edition100m

MSRP

Poseidon Diver (Automatic)$249

5 Sports SKX series MOONEYES Limited Edition$420

Full specifications

Case

5 specs

Crystal & Dial

3 specs

Crystal

Sapphire

Hardlex

Crystal Shape

Flat

Curved

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

NH35 Warranty

4R36

Power Reserve

40h

41h

Jewels

Pricing

1 specs

MSRP

$249

$420

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