Side by side
Borealis Watch Co. Caloura 300mvsLoresum Founder Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Caloura 300m42mm
Founder Edition39.5mm
Power Reserve
Caloura 300m40h
Founder Edition38h
Water Resistance
Caloura 300m300m
Founder Edition50m
MSRP
Caloura 300m$275
Founder Edition—
Full specifications
Case
6 specsCategory
Diver
—
Diameter
42mm
39.5mm
Thickness
13.9mm
9.9mm
Lug-to-Lug
44.20mm
46.5mm
Lug Width
22mm
20mm
Water Resistance
300m
50m
Crystal & Dial
1 specsDial Color
Black
Aventurine
Movement
2 specsCaliber
NH35
Sellita SW200-1
Power Reserve
40h
38h
Pricing
1 specsMSRP
$275
—
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Borealis Watch Co. Caloura 300m vs Loresum Founder Edition gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Loresum Founder EditionvsBoldr MarineLoresum Founder EditionvsBoldr Odyssey FreediverChristopher Ward C60 LympstonevsLoresum Founder EditionLoresum Founder EditionvsSpinnaker Tesei TitaniumBiatec T. G. MasarykvsBorealis Watch Co. Caloura 300mBiatec Majestic SE 01 WDLvsBorealis Watch Co. Caloura 300m