Side by side
Borealis Watch Co. Sea Storm MK2vsSeiko Prospex Sea Save the Ocean Special Edition
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 MK241.50mm
Prospex Sea Save the Ocean Special Edition42.4mm
Power Reserve
Sea Storm MK240h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Sea Storm MK2300m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Sea Storm MK2$475
Prospex Sea Save the Ocean Special Edition$550
Full specifications
Case
5 specsDiameter
41.50mm
42.4mm
Thickness
14.15mm
13.4mm
Lug-to-Lug
48.50mm
49.4mm
Lug Width
20mm
20mm
Water Resistance
300m
200m
Crystal & Dial
2 specsCrystal
Sapphire
Hardlex
Lume
BGW9
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
NH38
4R36
Power Reserve
40h
41h
Jewels
25
24
Pricing
1 specsMSRP
$475
$550
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