Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsSeiko King Seiko KSK
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
King Seiko KSK38.6mm
Power Reserve
Sea Storm MK2 GMT40h
King Seiko KSK45h
Water Resistance
Sea Storm MK2 GMT300m
King Seiko KSK50m
MSRP
Sea Storm MK2 GMT$415
King Seiko KSK$3,300
Full specifications
Case
6 specsCategory
Diver
Dress
Diameter
41.50mm
38.6mm
Thickness
14.15mm
10.7mm
Lug-to-Lug
48.50mm
45.8mm
Lug Width
20mm
19mm
Water Resistance
300m
50m
Crystal & Dial
3 specsCrystal Shape
Flat
Box
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
BGW9
None
Movement
3 specsCaliber
NH34
6L35
Power Reserve
40h
45h
Jewels
25
26
Pricing
1 specsMSRP
$415
$3,300
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