Which is cheaper, the Borealis Watch Co. Caloura 300m or the Tornek-Rayville CISO M38 Field?

At MSRP the Borealis Watch Co. Caloura 300m is the cheaper of the two at $275, against $695 for the Tornek-Rayville CISO M38 Field — a $420 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Caloura 300m or the Tornek-Rayville CISO M38 Field?

The Borealis Watch Co. Caloura 300m wears larger at 42mm versus 38mm for the Tornek-Rayville CISO M38 Field — a 4mm difference across the dial.

Which has better water resistance, the Borealis Watch Co. Caloura 300m or the Tornek-Rayville CISO M38 Field?

The Borealis Watch Co. Caloura 300m is rated to 300m versus 100m for the Tornek-Rayville CISO M38 Field.

Which has a longer power reserve, the Borealis Watch Co. Caloura 300m or the Tornek-Rayville CISO M38 Field?

The Tornek-Rayville CISO M38 Field 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 Tornek-Rayville CISO M38 Field?

Both watches run automatic movements — the Borealis Watch Co. Caloura 300m uses the NH35 and the Tornek-Rayville CISO M38 Field uses the TMI NH36.

Side by side

Borealis Watch Co. Caloura 300mvsTornek-Rayville CISO M38 Field

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

Tornek-Rayville CISO M38 Field

soa

MSRP $695

At a glance

11 of 29 specs differ

Diameter

Caloura 300m42mm

CISO M38 Field38mm

Power Reserve

Caloura 300m40h

CISO M38 Field42h

Water Resistance

Caloura 300m300m

CISO M38 Field100m

MSRP

Caloura 300m$275

CISO M38 Field$695

Full specifications

Case

6 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Lume

BGW9

Superluminova

Movement

2 specs

Caliber

NH35

TMI NH36

Power Reserve

40h

42h

Pricing

1 specs

MSRP

$275

$695

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