Which is cheaper, the Bremont Supermarine 300M or the Sternglas Naos XS Automatik?

At MSRP the Sternglas Naos XS Automatik is the cheaper of the two at $431, against $3,550 for the Bremont Supermarine 300M — a $3,119 gap before any retailer discounting.

Which is bigger, the Bremont Supermarine 300M or the Sternglas Naos XS Automatik?

The Bremont Supermarine 300M wears larger at 40mm versus 33mm for the Sternglas Naos XS Automatik — a 7mm difference across the dial.

Which has better water resistance, the Bremont Supermarine 300M or the Sternglas Naos XS Automatik?

The Bremont Supermarine 300M is rated to 300m versus 50m for the Sternglas Naos XS Automatik.

What movement does the Bremont Supermarine 300M run compared to the Sternglas Naos XS Automatik?

Both watches run automatic movements — the Bremont Supermarine 300M uses the BE-92AE and the Sternglas Naos XS Automatik uses the Miyota 6T15.

Side by side

Bremont Supermarine 300MvsSternglas Naos XS Automatik

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

Bremont Supermarine 300M

sm40-nd-ss-gn-b

MSRP $3,550

Sternglas Naos XS Automatik

naos-xs-automatik-gold

MSRP $431

At a glance

12 of 29 specs differ

Diameter

Supermarine 300M40mm

Naos XS Automatik33mm

Power Reserve

Supermarine 300M40h

Naos XS Automatik—

Water Resistance

Supermarine 300M300m

Naos XS Automatik50m

MSRP

Supermarine 300M$3,550

Naos XS Automatik$431

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Dial Color

Green

—

Movement

3 specs

Caliber

BE-92AE

Miyota 6T15

Power Reserve

40h

—

Jewels

—

Pricing

1 specs

MSRP

$3,550

$431

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Bremont Supermarine 300MvsSternglas Naos XS Automatik

At a glance

Full specifications

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