Which is cheaper, the Borealis Watch Co. Sea Storm MK2 or the Seiko Prospex LX line?

At MSRP the Borealis Watch Co. Sea Storm MK2 is the cheaper of the two at $475, against $6,500 for the Seiko Prospex LX line — a $6,025 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Sea Storm MK2 or the Seiko Prospex LX line?

The Seiko Prospex LX line wears larger at 44.8mm versus 41.50mm for the Borealis Watch Co. Sea Storm MK2 — a 3.3mm difference across the dial.

Which has a longer power reserve, the Borealis Watch Co. Sea Storm MK2 or the Seiko Prospex LX line?

The Seiko Prospex LX line carries a 72-hour power reserve against 40 hours on the Borealis Watch Co. Sea Storm MK2.

What movement does the Borealis Watch Co. Sea Storm MK2 run compared to the Seiko Prospex LX line?

The Borealis Watch Co. Sea Storm MK2 runs a automatic caliber (NH38), while the Seiko Prospex LX line runs a spring drive (5R65).

Side by side

Borealis Watch Co. Sea Storm MK2vsSeiko Prospex LX line

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

Borealis Watch Co.Sea Storm MK2

borealis-sea-storm-mk2-random-rob-special-limited-edition

MSRP $475

Seiko Prospex LX line

snr029j1

MSRP $6,500

At a glance

12 of 29 specs differ

Diameter

Sea Storm MK241.50mm

Prospex LX line44.8mm

Power Reserve

Sea Storm MK240h

Prospex LX line72h

Water Resistance

Sea Storm MK2300m

Prospex LX line300m

MSRP

Sea Storm MK2$475

Prospex LX line$6,500

Full specifications

Case

5 specs

Diameter

41.50mm

44.8mm

Thickness

14.15mm

15.7mm

Lug-to-Lug

48.50mm

50.9mm

Lug Width

20mm

22mm

Material

Stainless Steel

Titanium

Crystal & Dial

2 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

BGW9

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

NH38

5R65

Type

Automatic

Spring Drive

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$475

$6,500

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