Side by side

Borealis Watch Co. Sea Storm MK2vsGrand Seiko SBGX355

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
SBGX355
Grand SeikoSBGX355
MSRP $4,100

At a glance

12 of 29 specs differ
Diameter
Sea Storm MK241.50mm
SBGX35537mm
Power Reserve
Sea Storm MK240h
SBGX35540h
Water Resistance
Sea Storm MK2300m
SBGX355100m
MSRP
Sea Storm MK2$475
SBGX355$4,100

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
41.50mm
37mm
Thickness
14.15mm
10.6mm
Lug-to-Lug
48.50mm
44.6mm
Lug Width
20mm
19mm
Material
Stainless Steel
Titanium
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
BGW9
None

Movement

2 specs
Caliber
NH38
9F62
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$475
$4,100

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