Which is cheaper, the Citizen Series 8 870 or the Helgray Poseidon Diver (Automatic)?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $1,095 for the Citizen Series 8 870 — a $846 gap before any retailer discounting.

Which is bigger, the Citizen Series 8 870 or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) wears larger at 40mm versus 39mm for the Citizen Series 8 870 — a 1mm difference across the dial.

Which has better water resistance, the Citizen Series 8 870 or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 100m for the Citizen Series 8 870.

Which has a longer power reserve, the Citizen Series 8 870 or the Helgray Poseidon Diver (Automatic)?

The Citizen Series 8 870 carries a 42-hour power reserve against 40 hours on the Helgray Poseidon Diver (Automatic).

What movement does the Citizen Series 8 870 run compared to the Helgray Poseidon Diver (Automatic)?

Both watches run automatic movements — the Citizen Series 8 870 uses the 9051 and the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty.

Side by side

Citizen Series 8 870vsHelgray Poseidon Diver (Automatic)

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

Citizen Series 8 870

NB6080

MSRP $1,095

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

At a glance

9 of 29 specs differ

Diameter

Series 8 87039mm

Poseidon Diver (Automatic)40mm

Power Reserve

Series 8 87042h

Poseidon Diver (Automatic)40h

Water Resistance

Series 8 870100m

Poseidon Diver (Automatic)300m

MSRP

Series 8 870$1,095

Poseidon Diver (Automatic)$249

Full specifications

Case

4 specs

Crystal & Dial

2 specs

AR Coating

Underside

Inner

Dial Color

Green

Black

Movement

2 specs

Caliber

9051

NH35 Warranty

Power Reserve

42h

40h

Pricing

1 specs

MSRP

$1,095

$249

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