Which is cheaper, the Borealis Watch Co. Caloura 300m or the Sternglas Naos Pro GMT Automatik?

At MSRP the Borealis Watch Co. Caloura 300m is the cheaper of the two at $275, against $863 for the Sternglas Naos Pro GMT Automatik — a $588 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Caloura 300m or the Sternglas Naos Pro GMT Automatik?

The Borealis Watch Co. Caloura 300m wears larger at 42mm versus 38mm for the Sternglas Naos Pro GMT Automatik — a 4mm difference across the dial.

Which has better water resistance, the Borealis Watch Co. Caloura 300m or the Sternglas Naos Pro GMT Automatik?

The Borealis Watch Co. Caloura 300m is rated to 300m versus 50m for the Sternglas Naos Pro GMT Automatik.

Which has a longer power reserve, the Borealis Watch Co. Caloura 300m or the Sternglas Naos Pro GMT Automatik?

The Sternglas Naos Pro GMT Automatik carries a 42-hour power reserve against 40 hours on the Borealis Watch Co. Caloura 300m.

What movement does the Borealis Watch Co. Caloura 300m run compared to the Sternglas Naos Pro GMT Automatik?

Both watches run automatic movements — the Borealis Watch Co. Caloura 300m uses the NH35 and the Sternglas Naos Pro GMT Automatik uses the Miyota 9075.

Side by side

Borealis Watch Co. Caloura 300mvsSternglas Naos Pro GMT Automatik

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

Borealis Watch Co.Caloura 300m

borealis-caloura-diver-watch

MSRP $275

Sternglas Naos Pro GMT Automatik

naos-pro-automatik-gmt-dunkelblau

MSRP $863

At a glance

12 of 29 specs differ

Diameter

Caloura 300m42mm

Naos Pro GMT Automatik38mm

Power Reserve

Caloura 300m40h

Naos Pro GMT Automatik42h

Water Resistance

Caloura 300m300m

Naos Pro GMT Automatik50m

MSRP

Caloura 300m$275

Naos Pro GMT Automatik$863

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Dial Color

Black

—

Lume

BGW9

Luminova Punkte

Movement

3 specs

Caliber

NH35

Miyota 9075

Power Reserve

40h

42h

Jewels

—

Pricing

1 specs

MSRP

$275

$863

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