Side by side
Borealis Watch Co. Sea Storm MK2vsCitizen Promaster Skyhawk U830
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 MK241.50mm
Promaster Skyhawk U83043mm
Power Reserve
Sea Storm MK240h
Promaster Skyhawk U83040h
Water Resistance
Sea Storm MK2300m
Promaster Skyhawk U830200m
MSRP
Sea Storm MK2$475
Promaster Skyhawk U830$596
Full specifications
Case
6 specsCategory
Diver
Pilot
Diameter
41.50mm
43mm
Thickness
14.15mm
12mm
Lug-to-Lug
48.50mm
46mm
Lug Width
20mm
22mm
Water Resistance
300m
200m
Crystal & Dial
3 specsAR Coating
Inner
Underside
Dial Color
Black
Blue
Lume
BGW9
None
Movement
2 specsCaliber
NH38
U830
Type
Automatic
Quartz
Pricing
1 specsMSRP
$475
$596
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