Side by side
Borealis Watch Co. Sea Storm MK2vsZelos Hammerhead (Tantalum LE)
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 MK241.50mm
Hammerhead (Tantalum LE)44mm
Power Reserve
Sea Storm MK240h
Hammerhead (Tantalum LE)40h
Water Resistance
Sea Storm MK2300m
Hammerhead (Tantalum LE)300m
MSRP
Sea Storm MK2$475
Hammerhead (Tantalum LE)$1,499
Full specifications
Case
5 specsDiameter
41.50mm
44mm
Thickness
14.15mm
13mm
Lug-to-Lug
48.50mm
44mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Crystal & Dial
3 specsCrystal
Sapphire
Domed Sapphire
Dial Color
Black
Tantalum LE
Lume
BGW9
None
Movement
1 specsCaliber
NH38
Seiko NH35
Pricing
1 specsMSRP
$475
$1,499
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