Side by side
Borealis Watch Co. Caloura 300mvsSeiko Coutura
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
The bottom line
The 42mm Caloura 300m wears 3.6mm narrower than the 45.6mm Coutura — that's a meaningful jump on most wrists.
Check prices & track
Borealis Watch Co. Caloura 300m
MSRP $275
Seiko Coutura
MSRP $550
At a glance
10 of 29 specs differDiameter
Caloura 300m42mm
Coutura45.6mm
Power Reserve
Caloura 300m40h
Coutura40h
Water Resistance
Caloura 300m300m
Coutura100m
MSRP
Caloura 300m$275
Coutura$550
Full specifications
Case
6 specsCategory
Diver
Chronograph
Diameter
42mm
45.6mm
Thickness
13.9mm
11.7mm
Lug-to-Lug
44.20mm
56mm
Lug Width
22mm
15mm
Water Resistance
300m
100m
Crystal & Dial
1 specsLume
BGW9
LumiBrite on Hands
Movement
2 specsCaliber
NH35
7T12
Type
Automatic
Quartz
Pricing
1 specsMSRP
$275
$550
Follow this matchup
Get a note when Borealis Watch Co. Caloura 300m vs Seiko Coutura 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.
Boldr MarinevsSeiko CouturaBoldr Odyssey FreedivervsSeiko CouturaChristopher Ward C60 LympstonevsSeiko CouturaSpinnaker Tesei TitaniumvsSeiko CouturaAVI-8 Hawker Hurricane 90th Anniversary Chronograph Limited EditionvsBorealis Watch Co. Caloura 300mBorealis Watch Co. Caloura 300mvsChristopher Ward C63 Valour