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

At MSRP the Borealis Watch Co. Sea Storm MK2 GMT is the cheaper of the two at $415, against $6,850 for the Bremont Supermarine Chrono — a $6,435 gap before any retailer discounting.

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

The Bremont Supermarine Chrono wears larger at 43mm versus 41.50mm for the Borealis Watch Co. Sea Storm MK2 GMT — a 1.5mm difference across the dial.

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

Both watches run automatic movements — the Borealis Watch Co. Sea Storm MK2 GMT uses the NH34 and the Bremont Supermarine Chrono uses the BE-50AE.

Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsBremont Supermarine Chrono

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

Borealis Watch Co.Sea Storm MK2 GMT

borealis-sea-storm-mk2-gmt-version-aa

MSRP $415

Bremont Supermarine Chrono

supermarine-chrono-black

MSRP $6,850

At a glance

9 of 29 specs differ

Diameter

Sea Storm MK2 GMT41.50mm

Supermarine Chrono43mm

Power Reserve

Sea Storm MK2 GMT40h

Supermarine Chrono40h

Water Resistance

Sea Storm MK2 GMT300m

Supermarine Chrono300m

MSRP

Sea Storm MK2 GMT$415

Supermarine Chrono$6,850

Full specifications

Case

6 specs

Crystal & Dial

1 specs

Lume

BGW9

None

Movement

1 specs

Caliber

NH34

BE-50AE

Pricing

1 specs

MSRP

$415

$6,850

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