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 $595 for the Seiko Prospex Sea — a $164 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 41.7mm versus 33mm for the Sternglas Naos XS Automatik — a 8.7mm difference across the dial.

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

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

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

Both watches run automatic movements — the Sternglas Naos XS Automatik uses the Miyota 6T15 and the Seiko Prospex Sea uses the 4R35.

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

srpl11

MSRP $595

At a glance

13 of 29 specs differ

Diameter

Naos XS Automatik33mm

Prospex Sea41.7mm

Power Reserve

Naos XS Automatik—

Prospex Sea41h

Water Resistance

Naos XS Automatik50m

Prospex Sea200m

MSRP

Naos XS Automatik$431

Prospex Sea$595

Full specifications

Case

6 specs

Crystal & Dial

3 specs

Crystal

Sapphire

Hardlex

Dial Color

—

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Miyota 6T15

4R35

Power Reserve

—

41h

Jewels

—

Pricing

1 specs

MSRP

$431

$595

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Sternglas Naos XS AutomatikvsSeiko Prospex Sea

At a glance

Full specifications

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