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

At MSRP the Sternglas Naos XS Automatik is the cheaper of the two at $431, against $795 for the Seiko Prospex Sea — a $364 gap before any retailer discounting.

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

The Seiko Prospex Sea wears larger at 34mm versus 33mm for the Sternglas Naos XS Automatik — a 1mm difference across the dial.

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

The Sternglas Naos XS Automatik is rated to 50m versus 20m for the Seiko Prospex Sea.

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

The Sternglas Naos XS Automatik runs a automatic caliber (Miyota 6T15), while the Seiko Prospex Sea runs a quartz (6N01).

Side by side

Sternglas Naos XS AutomatikvsSeiko Prospex Sea

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

Sternglas Naos XS Automatik

naos-xs-automatik-gold

MSRP $431

Seiko Prospex Sea

sur595j1

MSRP $795

At a glance

13 of 29 specs differ

Diameter

Naos XS Automatik33mm

Prospex Sea34mm

Power Reserve

Naos XS Automatik—

Prospex Sea40h

Water Resistance

Naos XS Automatik50m

Prospex Sea200m

MSRP

Naos XS Automatik$431

Prospex Sea$795

Full specifications

Case

5 specs

Crystal & Dial

3 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

—

Black

Lume

None

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

Miyota 6T15

6N01

Type

Automatic

Quartz

Power Reserve

—

40h

Jewels

—

Pricing

1 specs

MSRP

$431

$795

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Sternglas Naos XS AutomatikvsSeiko Prospex Sea

At a glance

Full specifications

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