Side by side
Borealis Watch Co. Caloura 300mvsCitizen Promaster Professional Diver
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Caloura 300m42mm
Promaster Professional Diver44mm
Power Reserve
Caloura 300m40h
Promaster Professional Diver40h
Water Resistance
Caloura 300m300m
Promaster Professional Diver200m
MSRP
Caloura 300m$275
Promaster Professional Diver$431
Full specifications
Case
6 specsDiameter
42mm
44mm
Thickness
13.9mm
12mm
Lug-to-Lug
44.20mm
46mm
Lug Width
22mm
22mm
Material
Stainless Steel
Super Titanium
Water Resistance
300m
200m
Crystal & Dial
2 specsCrystal
Sapphire
Mineral
Lume
BGW9
None
Movement
2 specsCaliber
NH35
E168
Type
Automatic
Solar
Pricing
1 specsMSRP
$275
$431
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