Which is cheaper, the Helgray Poseidon Diver (Automatic) or the Praesidus Service Watch?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $259 for the Praesidus Service Watch — a $10 gap before any retailer discounting.

Which is bigger, the Helgray Poseidon Diver (Automatic) or the Praesidus Service Watch?

The Praesidus Service Watch 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 Praesidus Service Watch?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 100m for the Praesidus Service Watch.

What movement does the Helgray Poseidon Diver (Automatic) run compared to the Praesidus Service Watch?

Both watches run automatic movements — the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty and the Praesidus Service Watch uses the Seiko NH35.

Side by side

Helgray Poseidon Diver (Automatic)vsPraesidus Service Watch

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

Praesidus Service Watch

P-38-MB-E

MSRP $259

At a glance

9 of 29 specs differ

Diameter

Poseidon Diver (Automatic)40mm

Service Watch42mm

Power Reserve

Poseidon Diver (Automatic)40h

Service Watch40h

Water Resistance

Poseidon Diver (Automatic)300m

Service Watch100m

MSRP

Poseidon Diver (Automatic)$249

Service Watch$259

Full specifications

Case

6 specs

Crystal & Dial

1 specs

Dial Color

Black

Green

Movement

1 specs

Caliber

NH35 Warranty

Seiko NH35

Pricing

1 specs

MSRP

$249

$259

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