Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsCIGA Design BLACK STAR
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
BLACK STAR46mm
Power Reserve
Sea Storm MK2 GMT40h
BLACK STAR41h
Water Resistance
Sea Storm MK2 GMT300m
BLACK STAR30m
MSRP
Sea Storm MK2 GMT$415
BLACK STAR$1,980
Full specifications
Case
7 specsCategory
Diver
Chronograph
Diameter
41.50mm
46mm
Thickness
14.15mm
15.6mm
Lug-to-Lug
48.50mm
—
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
300m
30m
Crystal & Dial
2 specsDial Color
Black
—
Lume
BGW9
Swiss Super-LumiNova
Movement
3 specsCaliber
NH34
CD-04-S
Power Reserve
40h
41h
Jewels
25
26
Pricing
1 specsMSRP
$415
$1,980
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