Which is cheaper, the Sternglas Naos Pro GMT Automatik or the Helgray Poseidon Diver (Automatic)?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $863 for the Sternglas Naos Pro GMT Automatik — a $614 gap before any retailer discounting.

Which is bigger, the Sternglas Naos Pro GMT Automatik or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) wears larger at 40mm versus 38mm for the Sternglas Naos Pro GMT Automatik — a 2mm difference across the dial.

Which has better water resistance, the Sternglas Naos Pro GMT Automatik or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 50m for the Sternglas Naos Pro GMT Automatik.

Which has a longer power reserve, the Sternglas Naos Pro GMT Automatik or the Helgray Poseidon Diver (Automatic)?

The Sternglas Naos Pro GMT Automatik carries a 42-hour power reserve against 40 hours on the Helgray Poseidon Diver (Automatic).

What movement does the Sternglas Naos Pro GMT Automatik run compared to the Helgray Poseidon Diver (Automatic)?

Both watches run automatic movements — the Sternglas Naos Pro GMT Automatik uses the Miyota 9075 and the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty.

Side by side

Sternglas Naos Pro GMT AutomatikvsHelgray Poseidon Diver (Automatic)

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

Sternglas Naos Pro GMT Automatik

naos-pro-automatik-gmt-dunkelblau

MSRP $863

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

At a glance

11 of 29 specs differ

Diameter

Naos Pro GMT Automatik38mm

Poseidon Diver (Automatic)40mm

Power Reserve

Naos Pro GMT Automatik42h

Poseidon Diver (Automatic)40h

Water Resistance

Naos Pro GMT Automatik50m

Poseidon Diver (Automatic)300m

MSRP

Naos Pro GMT Automatik$863

Poseidon Diver (Automatic)$249

Full specifications

Case

5 specs

Crystal & Dial

2 specs

Dial Color

—

Black

Lume

Luminova Punkte

None

Movement

3 specs

Caliber

Miyota 9075

NH35 Warranty

Power Reserve

42h

40h

Jewels

—

Pricing

1 specs

MSRP

$863

$249

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