Side by side
Borealis Watch Co. Caloura 300mvsTSAO Baltimore OLD BAY Timepiece
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
OLD BAY Timepiece40mm
Power Reserve
Caloura 300m40h
OLD BAY Timepiece41h
Water Resistance
Caloura 300m300m
OLD BAY Timepiece200m
MSRP
Caloura 300m$275
OLD BAY Timepiece$550
Full specifications
Case
6 specsCategory
Diver
—
Diameter
42mm
40mm
Thickness
13.9mm
13.2mm
Lug-to-Lug
44.20mm
46mm
Lug Width
22mm
20mm
Water Resistance
300m
200m
Crystal & Dial
2 specsDial Color
Black
—
Lume
BGW9
None
Movement
2 specsCaliber
NH35
Seiko NH38
Power Reserve
40h
41h
Pricing
1 specsMSRP
$275
$550
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