Side by side
Borealis Watch Co. Caloura 300mvsTudor Black Bay Ceramic
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Caloura 300m42mm
Black Bay Ceramic41mm
Power Reserve
Caloura 300m40h
Black Bay Ceramic70h
Water Resistance
Caloura 300m300m
Black Bay Ceramic200m
MSRP
Caloura 300m$275
Black Bay Ceramic$6,125
Full specifications
Case
7 specsDiameter
42mm
41mm
Thickness
13.9mm
14.4mm
Lug-to-Lug
44.20mm
46mm
Lug Width
22mm
22mm
Material
Stainless Steel
Ceramic
Water Resistance
300m
200m
Caseback
Solid
Engraved
Crystal & Dial
1 specsLume
BGW9
None
Movement
2 specsCaliber
NH35
MT5602-1U
Power Reserve
40h
70h
Pricing
1 specsMSRP
$275
$6,125
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