Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsGrand Seiko SBGC253

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
SBGC253
Grand SeikoSBGC253
MSRP $13,200

At a glance

13 of 29 specs differ
Diameter
Sea Storm MK2 GMT41.50mm
SBGC25344.5mm
Power Reserve
Sea Storm MK2 GMT40h
SBGC25372h
Water Resistance
Sea Storm MK2 GMT300m
SBGC253200m
MSRP
Sea Storm MK2 GMT$415
SBGC253$13,200

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
41.50mm
44.5mm
Thickness
14.15mm
16.8mm
Lug-to-Lug
48.50mm
50mm
Lug Width
20mm
23mm
Material
Stainless Steel
Titanium
Water Resistance
300m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
BGW9
None

Movement

3 specs
Caliber
NH34
9R86
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$415
$13,200

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