Which is cheaper, the Sternglas Naos Mondphase or the Seiko Prospex Sea?

At MSRP the Sternglas Naos Mondphase is the cheaper of the two at $323, against $900 for the Seiko Prospex Sea — a $577 gap before any retailer discounting.

Which is bigger, the Sternglas Naos Mondphase or the Seiko Prospex Sea?

The Seiko Prospex Sea wears larger at 41mm versus 38mm for the Sternglas Naos Mondphase — a 3mm difference across the dial.

Which has better water resistance, the Sternglas Naos Mondphase or the Seiko Prospex Sea?

The Seiko Prospex Sea is rated to 200m versus 50m for the Sternglas Naos Mondphase.

What movement does the Sternglas Naos Mondphase run compared to the Seiko Prospex Sea?

The Sternglas Naos Mondphase runs a quartz caliber (Seiko VJ76), while the Seiko Prospex Sea runs a automatic (6R35).

Side by side

Sternglas Naos MondphasevsSeiko Prospex Sea

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

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Sternglas Naos Mondphase

naos-mondphase-mitternachtsblau

MSRP $323

See the full Naos Mondphase

Seiko Prospex Sea

spb317j1

MSRP $900

See the full Prospex Sea

At a glance

14 of 29 specs differ

Diameter

Naos Mondphase38mm

Prospex Sea41mm

Power Reserve

Naos Mondphase—

Prospex Sea70h

Water Resistance

Naos Mondphase50m

Prospex Sea200m

MSRP

Naos Mondphase$323

Prospex Sea$900

Full specifications

Case

5 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

—

Black

Lume

Luminova Punkten

LumiBrite on hands, index(es) and bezel

Movement

4 specs

Caliber

Seiko VJ76

6R35

Type

Quartz

Automatic

Power Reserve

—

70h

Jewels

—

Pricing

1 specs

MSRP

$323

$900

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Sternglas Naos MondphasevsSeiko Prospex Sea

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