Which is cheaper, the Zelos Nasa Edition (sellita) or the Helgray Poseidon Diver (Automatic)?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $629 for the Zelos Nasa Edition (sellita) — a $380 gap before any retailer discounting.

Which is bigger, the Zelos Nasa Edition (sellita) or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) wears larger at 40mm versus 39mm for the Zelos Nasa Edition (sellita) — a 1mm difference across the dial.

Which has better water resistance, the Zelos Nasa Edition (sellita) or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 50m for the Zelos Nasa Edition (sellita).

What movement does the Zelos Nasa Edition (sellita) run compared to the Helgray Poseidon Diver (Automatic)?

The Zelos Nasa Edition (sellita) runs a manual caliber (ETA/Peseux 7001), while the Helgray Poseidon Diver (Automatic) runs a automatic (NH35 Warranty).

Side by side

Zelos Nasa Edition (sellita)vsHelgray Poseidon Diver (Automatic)

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

Zelos Nasa Edition (sellita)

comet-39mm-nasa

MSRP $629

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

At a glance

11 of 29 specs differ

Diameter

Nasa Edition (sellita)39mm

Poseidon Diver (Automatic)40mm

Power Reserve

Nasa Edition (sellita)40h

Poseidon Diver (Automatic)40h

Water Resistance

Nasa Edition (sellita)50m

Poseidon Diver (Automatic)300m

MSRP

Nasa Edition (sellita)$629

Poseidon Diver (Automatic)$249

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Crystal

Domed Sapphire

Sapphire

Dial Color

NASA Edition (Sellita)

Black

Movement

2 specs

Caliber

ETA/Peseux 7001

NH35 Warranty

Type

Manual

Automatic

Pricing

1 specs

MSRP

$629

$249

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