Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsCitizen Promaster Diver Automatic
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
Promaster Diver Automatic44mm
Power Reserve
Sea Storm MK2 GMT40h
Promaster Diver Automatic40h
Water Resistance
Sea Storm MK2 GMT300m
Promaster Diver Automatic200m
MSRP
Sea Storm MK2 GMT$415
Promaster Diver Automatic$469
Full specifications
Case
5 specsDiameter
41.50mm
44mm
Thickness
14.15mm
12mm
Lug-to-Lug
48.50mm
46mm
Lug Width
20mm
20mm
Water Resistance
300m
200m
Crystal & Dial
2 specsDial Color
Black
Blue
Lume
BGW9
None
Movement
1 specsCaliber
NH34
8204
Pricing
1 specsMSRP
$415
$469
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