Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsSeiko Prospex Sea
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
Prospex Sea42mm
Power Reserve
Sea Storm MK2 GMT40h
Prospex Sea72h
Water Resistance
Sea Storm MK2 GMT300m
Prospex Sea300m
MSRP
Sea Storm MK2 GMT$415
Prospex Sea—
Full specifications
Case
4 specsDiameter
41.50mm
42mm
Thickness
14.15mm
13.3mm
Lug-to-Lug
48.50mm
48.6mm
Lug Width
20mm
20mm
Crystal & Dial
2 specsAR Coating
Inner
Anti-reflective coating on inner surface
Lume
BGW9
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
NH34
6R54
Power Reserve
40h
72h
Jewels
25
24
Pricing
1 specsMSRP
$415
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