Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsZelos Blacktip 200m GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
Blacktip 200m GMT41mm
Power Reserve
Sea Storm MK2 GMT40h
Blacktip 200m GMT40h
Water Resistance
Sea Storm MK2 GMT300m
Blacktip 200m GMT200m
MSRP
Sea Storm MK2 GMT$415
Blacktip 200m GMT$499
Full specifications
Case
7 specsCategory
Diver
GMT
Diameter
41.50mm
41mm
Thickness
14.15mm
13mm
Lug-to-Lug
48.50mm
41mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m
Crystal & Dial
3 specsCrystal
Sapphire
Domed Sapphire
Dial Color
Black
MOP
Lume
BGW9
None
Movement
1 specsCaliber
NH34
Seiko NH34 GMT
Pricing
1 specsMSRP
$415
$499
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