Side by side

Borealis Watch Co. Sea Storm MK2vsGrand Seiko SBGW257

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

Sea Storm MK2
Borealis Watch Co.Sea Storm MK2
MSRP $475
SBGW257
Grand SeikoSBGW257
MSRP $38,000

At a glance

13 of 29 specs differ
Diameter
Sea Storm MK241.50mm
SBGW25738mm
Power Reserve
Sea Storm MK240h
SBGW25772h
Water Resistance
Sea Storm MK2300m
SBGW25730m
MSRP
Sea Storm MK2$475
SBGW257$38,000

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
41.50mm
38mm
Thickness
14.15mm
10.9mm
Lug-to-Lug
48.50mm
45.8mm
Lug Width
20mm
19mm
Material
Stainless Steel
Platinum
Water Resistance
300m
30m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
BGW9
None

Movement

3 specs
Caliber
NH38
9S64
Type
Automatic
Manual
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$475
$38,000

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