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

At MSRP the Spinnaker Hull Diver is the cheaper of the two at $375, against $415 for the Borealis Watch Co. Sea Storm MK2 GMT — a $40 gap before any retailer discounting.

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

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

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

Both watches run automatic movements — the Borealis Watch Co. Sea Storm MK2 GMT uses the NH34 and the Spinnaker Hull Diver uses the SII NH35A.

Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsSpinnaker Hull Diver

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 Hull Diver

hull-alligator-green-sp-5088-03

MSRP $375

At a glance

9 of 29 specs differ

Diameter

Sea Storm MK2 GMT41.50mm

Hull Diver42mm

Power Reserve

Sea Storm MK2 GMT40h

Hull Diver40h

Water Resistance

Sea Storm MK2 GMT300m

Hull Diver300m

MSRP

Sea Storm MK2 GMT$415

Hull Diver$375

Full specifications

Case

5 specs

Diameter

41.50mm

42mm

Thickness

14.15mm

15mm

Lug-to-Lug

48.50mm

47.5mm

Lug Width

20mm

22mm

Material

Stainless Steel

316L Stainless Steel

Crystal & Dial

2 specs

Dial Color

Black

Green

Lume

BGW9

None

Movement

1 specs

Caliber

NH34

SII NH35A

Pricing

1 specs

MSRP

$415

$375

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