Which is cheaper, the Borealis Watch Co. Sea Storm MK2 GMT or the Spinnaker Bradner GMT?

At MSRP the Spinnaker Bradner GMT is the cheaper of the two at $299, against $415 for the Borealis Watch Co. Sea Storm MK2 GMT — a $116 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Sea Storm MK2 GMT or the Spinnaker Bradner GMT?

The Spinnaker Bradner GMT wears larger at 42mm versus 41.50mm for the Borealis Watch Co. Sea Storm MK2 GMT — a 0.5mm difference across the dial.

Which has better water resistance, the Borealis Watch Co. Sea Storm MK2 GMT or the Spinnaker Bradner GMT?

The Borealis Watch Co. Sea Storm MK2 GMT is rated to 300m versus 180m for the Spinnaker Bradner GMT.

What movement does the Borealis Watch Co. Sea Storm MK2 GMT run compared to the Spinnaker Bradner GMT?

Both watches run automatic movements — the Borealis Watch Co. Sea Storm MK2 GMT uses the NH34 and the Spinnaker Bradner GMT uses the Seiko NH34A.

Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsSpinnaker Bradner GMT

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

Spinnaker Bradner GMT

bradner-gmt-automatic-abbott-brown-sp-5121-22

MSRP $299

At a glance

11 of 29 specs differ

Diameter

Sea Storm MK2 GMT41.50mm

Bradner GMT42mm

Power Reserve

Sea Storm MK2 GMT40h

Bradner GMT40h

Water Resistance

Sea Storm MK2 GMT300m

Bradner GMT180m

MSRP

Sea Storm MK2 GMT$415

Bradner GMT$299

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Dial Color

Black

Brown

Lume

BGW9

None

Movement

1 specs

Caliber

NH34

Seiko NH34A

Pricing

1 specs

MSRP

$415

$299

Follow this matchup

Get a note when Borealis Watch Co. Sea Storm MK2 GMT vs Spinnaker Bradner GMT gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring