Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsGrand Seiko SLGH017

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
SLGH017
Grand SeikoSLGH017
MSRP $10,500

At a glance

12 of 29 specs differ
Diameter
Sea Storm MK2 GMT41.50mm
SLGH01740mm
Power Reserve
Sea Storm MK2 GMT40h
SLGH01780h
Water Resistance
Sea Storm MK2 GMT300m
SLGH017100m
MSRP
Sea Storm MK2 GMT$415
SLGH017$10,500

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
41.50mm
40mm
Thickness
14.15mm
11.7mm
Lug-to-Lug
48.50mm
47mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
BGW9
None

Movement

2 specs
Caliber
NH34
9SA5
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$415
$10,500

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