Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsGrand Seiko SBGE253

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
SBGE253
Grand SeikoSBGE253
MSRP $6,900

At a glance

12 of 29 specs differ
Diameter
Sea Storm MK2 GMT41.50mm
SBGE25340.5mm
Power Reserve
Sea Storm MK2 GMT40h
SBGE25372h
Water Resistance
Sea Storm MK2 GMT300m
SBGE253200m
MSRP
Sea Storm MK2 GMT$415
SBGE253$6,900

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
41.50mm
40.5mm
Thickness
14.15mm
14.7mm
Lug-to-Lug
48.50mm
48.7mm
Lug Width
20mm
20mm
Water Resistance
300m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
BGW9
None

Movement

3 specs
Caliber
NH34
9R66
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$415
$6,900

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