Side by side
Borealis Watch Co. Caloura 300mvsBorealis Watch Co. Sea Storm MK2
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
6 of 29 specs differDiameter
Caloura 300m42mm
Sea Storm MK241.50mm
Power Reserve
Caloura 300m40h
Sea Storm MK240h
Water Resistance
Caloura 300m300m
Sea Storm MK2300m
MSRP
Caloura 300m$275
Sea Storm MK2$475
Full specifications
Case
4 specsDiameter
42mm
41.50mm
Thickness
13.9mm
14.15mm
Lug-to-Lug
44.20mm
48.50mm
Lug Width
22mm
20mm
Movement
1 specsCaliber
NH35
NH38
Pricing
1 specsMSRP
$275
$475
Follow this matchup
Get a note when Borealis Watch Co. Caloura 300m vs Borealis Watch Co. Sea Storm MK2 gets more votes, a community discussion, or a price drop. No account needed.
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Borealis Watch Co. Sea Storm MK2vsBoldr MarineBorealis Watch Co. Sea Storm MK2vsBoldr Odyssey FreediverBorealis Watch Co. Sea Storm MK2vsChristopher Ward C60 LympstoneBorealis Watch Co. Sea Storm MK2vsSpinnaker Tesei TitaniumBorealis Watch Co. Caloura 300mvsBorealis Watch Co. Sea Storm MK2 GMTBorealis Watch Co. Caloura 300mvsBorealis Watch Co. Neptuno









