Which is cheaper, the Borealis Watch Co. Caloura 300m or the Tudor Black Bay One 31 S&G?

At MSRP the Borealis Watch Co. Caloura 300m is the cheaper of the two at $275, against $6,850 for the Tudor Black Bay One 31 S&G — a $6,575 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Caloura 300m or the Tudor Black Bay One 31 S&G?

The Borealis Watch Co. Caloura 300m wears larger at 42mm versus 31mm for the Tudor Black Bay One 31 S&G — a 11mm difference across the dial.

Which has better water resistance, the Borealis Watch Co. Caloura 300m or the Tudor Black Bay One 31 S&G?

The Borealis Watch Co. Caloura 300m is rated to 300m versus 100m for the Tudor Black Bay One 31 S&G.

Which has a longer power reserve, the Borealis Watch Co. Caloura 300m or the Tudor Black Bay One 31 S&G?

The Tudor Black Bay One 31 S&G carries a 50-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 Tudor Black Bay One 31 S&G?

Both watches run automatic movements — the Borealis Watch Co. Caloura 300m uses the NH35 and the Tudor Black Bay One 31 S&G uses the MT5201.

Side by side

Borealis Watch Co. Caloura 300mvsTudor Black Bay One 31 S&G

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

Tudor Black Bay One 31 S&G

m79603-0001

MSRP $6,850

At a glance

12 of 29 specs differ

Diameter

Caloura 300m42mm

Black Bay One 31 S&G31mm

Power Reserve

Caloura 300m40h

Black Bay One 31 S&G50h

Water Resistance

Caloura 300m300m

Black Bay One 31 S&G100m

MSRP

Caloura 300m$275

Black Bay One 31 S&G$6,850

Full specifications

Case

8 specs

Crystal & Dial

1 specs

Lume

BGW9

None

Movement

2 specs

Caliber

NH35

MT5201

Power Reserve

40h

50h

Pricing

1 specs

MSRP

$275

$6,850

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