Which is cheaper, the Borealis Watch Co. Sea Storm MK2 or the Bremont Supermarine 300M?

At MSRP the Borealis Watch Co. Sea Storm MK2 is the cheaper of the two at $475, against $3,550 for the Bremont Supermarine 300M — a $3,075 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Sea Storm MK2 or the Bremont Supermarine 300M?

The Borealis Watch Co. Sea Storm MK2 wears larger at 41.50mm versus 40mm for the Bremont Supermarine 300M — a 1.5mm difference across the dial.

What movement does the Borealis Watch Co. Sea Storm MK2 run compared to the Bremont Supermarine 300M?

Both watches run automatic movements — the Borealis Watch Co. Sea Storm MK2 uses the NH38 and the Bremont Supermarine 300M uses the BE-92AE.

Side by side

Borealis Watch Co. Sea Storm MK2vsBremont Supermarine 300M

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

Borealis Watch Co.Sea Storm MK2

borealis-sea-storm-mk2-random-rob-special-limited-edition

MSRP $475

Bremont Supermarine 300M

sm40-nd-ss-gn-b

MSRP $3,550

At a glance

9 of 29 specs differ

Diameter

Sea Storm MK241.50mm

Supermarine 300M40mm

Power Reserve

Sea Storm MK240h

Supermarine 300M40h

Water Resistance

Sea Storm MK2300m

Supermarine 300M300m

MSRP

Sea Storm MK2$475

Supermarine 300M$3,550

Full specifications

Case

5 specs

Diameter

41.50mm

40mm

Thickness

14.15mm

12mm

Lug-to-Lug

48.50mm

—

Lug Width

20mm

Material

Stainless Steel

904L Stainless Steel

Crystal & Dial

2 specs

Dial Color

Black

Green

Lume

BGW9

None

Movement

1 specs

Caliber

NH38

BE-92AE

Pricing

1 specs

MSRP

$475

$3,550

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