Side by side
Borealis Watch Co. Caloura 300mvsNoctua Watch Corp. Sentinel
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
Sentinel42mm
Power Reserve
Caloura 300m40h
Sentinel—
Water Resistance
Caloura 300m300m
Sentinel300m
MSRP
Caloura 300m$275
Sentinel$429
Full specifications
Case
5 specsCategory
Diver
—
Diameter
42mm
42mm
Thickness
13.9mm
15mm
Lug-to-Lug
44.20mm
46mm
Lug Width
22mm
22mm
Crystal & Dial
2 specsDial Color
Black
—
Lume
BGW9
None
Movement
2 specsCaliber
NH35
Seiko NH35A
Power Reserve
40h
—
Pricing
1 specsMSRP
$275
—
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