Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsPraesidus Type H-75
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
Type H-7539mm
Power Reserve
Sea Storm MK2 GMT40h
Type H-7540h
Water Resistance
Sea Storm MK2 GMT300m
Type H-75100m
MSRP
Sea Storm MK2 GMT$415
Type H-75$245
Full specifications
Case
7 specsCategory
Diver
Pilot
Diameter
41.50mm
39mm
Thickness
14.15mm
—
Lug-to-Lug
48.50mm
—
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m
Crystal & Dial
1 specsLume
BGW9
None
Movement
2 specsCaliber
NH34
Seiko VK63 Meca-Quartz
Type
Automatic
Quartz
Pricing
1 specsMSRP
$415
$245
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