Which is cheaper, the Borealis Watch Co. Sea Storm MK2 GMT or the Seiko Prospex Land Seiko Boutique exclusive model?

At MSRP the Borealis Watch Co. Sea Storm MK2 GMT is the cheaper of the two at $415, against $875 for the Seiko Prospex Land Seiko Boutique exclusive model — a $460 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Sea Storm MK2 GMT or the Seiko Prospex Land Seiko Boutique exclusive model?

The Borealis Watch Co. Sea Storm MK2 GMT wears larger at 41.50mm versus 38mm for the Seiko Prospex Land Seiko Boutique exclusive model — a 3.5mm difference across the dial.

Which has better water resistance, the Borealis Watch Co. Sea Storm MK2 GMT or the Seiko Prospex Land Seiko Boutique exclusive model?

The Borealis Watch Co. Sea Storm MK2 GMT is rated to 300m versus 20m for the Seiko Prospex Land Seiko Boutique exclusive model.

Which has a longer power reserve, the Borealis Watch Co. Sea Storm MK2 GMT or the Seiko Prospex Land Seiko Boutique exclusive model?

The Seiko Prospex Land Seiko Boutique exclusive model carries a 70-hour power reserve against 40 hours on the Borealis Watch Co. Sea Storm MK2 GMT.

What movement does the Borealis Watch Co. Sea Storm MK2 GMT run compared to the Seiko Prospex Land Seiko Boutique exclusive model?

Both watches run automatic movements — the Borealis Watch Co. Sea Storm MK2 GMT uses the NH34 and the Seiko Prospex Land Seiko Boutique exclusive model uses the 6R35.

Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsSeiko Prospex Land Seiko Boutique exclusive model

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

Seiko Prospex Land Seiko Boutique exclusive model

spb289j1

MSRP $875

At a glance

13 of 29 specs differ

Diameter

Sea Storm MK2 GMT41.50mm

Prospex Land Seiko Boutique exclusive model38mm

Power Reserve

Sea Storm MK2 GMT40h

Prospex Land Seiko Boutique exclusive model70h

Water Resistance

Sea Storm MK2 GMT300m

Prospex Land Seiko Boutique exclusive model200m

MSRP

Sea Storm MK2 GMT$415

Prospex Land Seiko Boutique exclusive model$875

Full specifications

Case

6 specs

Crystal & Dial

3 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

BGW9

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

NH34

6R35

Power Reserve

40h

70h

Jewels

Pricing

1 specs

MSRP

$415

$875

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