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 Sea34mm
Power Reserve
Sea Storm MK2 GMT40h
Prospex Sea40h
Water Resistance
Sea Storm MK2 GMT300m
Prospex Sea200m
MSRP
Sea Storm MK2 GMT$415
Prospex Sea$795
Full specifications
Case
5 specsDiameter
41.50mm
34mm
Thickness
14.15mm
8.7mm
Lug-to-Lug
48.50mm
40.8mm
Lug Width
20mm
16mm
Water Resistance
300m
200m
Crystal & Dial
2 specsAR Coating
Inner
Anti-reflective coating on inner surface
Lume
BGW9
LumiBrite on hands and index(es)
Movement
2 specsCaliber
NH34
6N01
Type
Automatic
Quartz
Pricing
1 specsMSRP
$415
$795
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