Which is cheaper, the Borealis Watch Co. Caloura 300m or the Seiko 5 Sports Field series?

At MSRP the Borealis Watch Co. Caloura 300m is the cheaper of the two at $275, against $450 for the Seiko 5 Sports Field series — a $175 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Caloura 300m or the Seiko 5 Sports Field series?

The Borealis Watch Co. Caloura 300m wears larger at 42mm versus 39.4mm for the Seiko 5 Sports Field series — a 2.6mm difference across the dial.

Which has better water resistance, the Borealis Watch Co. Caloura 300m or the Seiko 5 Sports Field series?

The Borealis Watch Co. Caloura 300m is rated to 300m versus 10m for the Seiko 5 Sports Field series.

Which has a longer power reserve, the Borealis Watch Co. Caloura 300m or the Seiko 5 Sports Field series?

The Seiko 5 Sports Field series carries a 41-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 Seiko 5 Sports Field series?

Both watches run automatic movements — the Borealis Watch Co. Caloura 300m uses the NH35 and the Seiko 5 Sports Field series uses the 4R34.

Side by side

Borealis Watch Co. Caloura 300mvsSeiko 5 Sports Field series

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

Seiko 5 Sports Field series

ssk023

MSRP $450

At a glance

13 of 29 specs differ

Diameter

Caloura 300m42mm

5 Sports Field series39.4mm

Power Reserve

Caloura 300m40h

5 Sports Field series41h

Water Resistance

Caloura 300m300m

5 Sports Field series100m

MSRP

Caloura 300m$275

5 Sports Field series$450

Full specifications

Case

6 specs

Crystal & Dial

3 specs

Crystal

Sapphire

Hardlex

Crystal Shape

Flat

Curved

Lume

BGW9

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

NH35

4R34

Power Reserve

40h

41h

Jewels

Pricing

1 specs

MSRP

$275

$450

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