Side by side

Borealis Watch Co. Sea Storm MK2vsGrand Seiko SBGA375

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
SBGA375
Grand SeikoSBGA375
MSRP $5,600

At a glance

12 of 29 specs differ
Diameter
Sea Storm MK241.50mm
SBGA37540mm
Power Reserve
Sea Storm MK240h
SBGA37572h
Water Resistance
Sea Storm MK2300m
SBGA375100m
MSRP
Sea Storm MK2$475
SBGA375$5,600

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
41.50mm
40mm
Thickness
14.15mm
12.5mm
Lug-to-Lug
48.50mm
46.2mm
Lug Width
20mm
19mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
BGW9
None

Movement

3 specs
Caliber
NH38
9R65
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$475
$5,600

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