Which is cheaper, the Borealis Watch Co. Sea Storm MK2 GMT or the Citizen Promaster Sikorsky?

At MSRP the Borealis Watch Co. Sea Storm MK2 GMT is the cheaper of the two at $415, against $469 for the Citizen Promaster Sikorsky — a $54 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Sea Storm MK2 GMT or the Citizen Promaster Sikorsky?

The Citizen Promaster Sikorsky wears larger at 42.4mm versus 41.50mm for the Borealis Watch Co. Sea Storm MK2 GMT — a 0.9mm difference across the dial.

Which has better water resistance, the Borealis Watch Co. Sea Storm MK2 GMT or the Citizen Promaster Sikorsky?

The Borealis Watch Co. Sea Storm MK2 GMT is rated to 300m versus 200m for the Citizen Promaster Sikorsky.

What movement does the Borealis Watch Co. Sea Storm MK2 GMT run compared to the Citizen Promaster Sikorsky?

The Borealis Watch Co. Sea Storm MK2 GMT runs a automatic caliber (NH34), while the Citizen Promaster Sikorsky runs a solar (B877).

Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsCitizen Promaster Sikorsky

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

Citizen Promaster Sikorsky

BJ7004

MSRP $469

At a glance

12 of 29 specs differ

Diameter

Sea Storm MK2 GMT41.50mm

Promaster Sikorsky42.4mm

Power Reserve

Sea Storm MK2 GMT40h

Promaster Sikorsky40h

Water Resistance

Sea Storm MK2 GMT300m

Promaster Sikorsky200m

MSRP

Sea Storm MK2 GMT$415

Promaster Sikorsky$469

Full specifications

Case

6 specs

Crystal & Dial

3 specs

Crystal

Sapphire

Mineral

Dial Color

Black

Grey

Lume

BGW9

None

Movement

2 specs

Caliber

NH34

B877

Type

Automatic

Solar

Pricing

1 specs

MSRP

$415

$469

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