Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsGrand Seiko SBGJ259

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
SBGJ259
Grand SeikoSBGJ259
MSRP $7,700

At a glance

11 of 29 specs differ
Diameter
Sea Storm MK2 GMT41.50mm
SBGJ25940mm
Power Reserve
Sea Storm MK2 GMT40h
SBGJ25955h
Water Resistance
Sea Storm MK2 GMT300m
SBGJ259100m
MSRP
Sea Storm MK2 GMT$415
SBGJ259$7,700

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
41.50mm
40mm
Thickness
14.15mm
14mm
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
9S86
Power Reserve
40h
55h

Pricing

1 specs
MSRP
$415
$7,700

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