Side by side
Borealis Watch Co. Caloura 300mvsTissot Heritage 1973
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
Caloura 300m42mm
Heritage 197343mm
Power Reserve
Caloura 300m40h
Heritage 197360h
Water Resistance
Caloura 300m300m
Heritage 1973100m
MSRP
Caloura 300m$275
Heritage 1973$2,575
Full specifications
Case
6 specsCategory
Diver
Chronograph
Diameter
42mm
43mm
Thickness
13.9mm
14.8mm
Lug-to-Lug
44.20mm
46.6mm
Lug Width
22mm
22mm
Water Resistance
300m
100m
Crystal & Dial
5 specsCrystal Shape
Flat
Domed
AR Coating
Inner
Yes
Dial Color
Black
Silver
Indices
Applied
Indexes
Lume
BGW9
Super-LumiNova ®
Movement
2 specsCaliber
NH35
Valjoux
Power Reserve
40h
60h
Pricing
1 specsMSRP
$275
$2,575
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