Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsGrand Seiko SBGH281

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

Sea Storm MK2 GMT
Borealis Watch Co.Sea Storm MK2 GMT
MSRP $415
SBGH281
Grand SeikoSBGH281
MSRP $6,300

At a glance

11 of 29 specs differ
Diameter
Sea Storm MK2 GMT41.50mm
SBGH28140mm
Power Reserve
Sea Storm MK2 GMT40h
SBGH28155h
Water Resistance
Sea Storm MK2 GMT300m
SBGH281100m
MSRP
Sea Storm MK2 GMT$415
SBGH281$6,300

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
41.50mm
40mm
Thickness
14.15mm
13.3mm
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

2 specs
Caliber
NH34
9S85
Power Reserve
40h
55h

Pricing

1 specs
MSRP
$415
$6,300

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