Side by side

Borealis Watch Co. Sea Storm MK2vsCitizen Promaster Professional Diver

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Sea Storm MK2
Borealis Watch Co.Sea Storm MK2
MSRP $475
Promaster Professional Diver
CitizenPromaster Professional Diver
MSRP $431

At a glance

11 of 29 specs differ
Diameter
Sea Storm MK241.50mm
Promaster Professional Diver44mm
Power Reserve
Sea Storm MK240h
Promaster Professional Diver40h
Water Resistance
Sea Storm MK2300m
Promaster Professional Diver200m
MSRP
Sea Storm MK2$475
Promaster Professional Diver$431

Full specifications

Case

6 specs
Diameter
41.50mm
44mm
Thickness
14.15mm
12mm
Lug-to-Lug
48.50mm
46mm
Lug Width
20mm
22mm
Material
Stainless Steel
Super Titanium
Water Resistance
300m
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Mineral
Lume
BGW9
None

Movement

2 specs
Caliber
NH38
E168
Type
Automatic
Solar

Pricing

1 specs
MSRP
$475
$431

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