Side by side
Borealis Watch Co. Caloura 300mvsSeiko Prospex Sea JAWS 50th Anniversary Limited Edition
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
Prospex Sea JAWS 50th Anniversary Limited Edition45mm
Power Reserve
Caloura 300m40h
Prospex Sea JAWS 50th Anniversary Limited Edition41h
Water Resistance
Caloura 300m300m
Prospex Sea JAWS 50th Anniversary Limited Edition200m
MSRP
Caloura 300m$275
Prospex Sea JAWS 50th Anniversary Limited Edition$795
Full specifications
Case
5 specsDiameter
42mm
45mm
Thickness
13.9mm
13.2mm
Lug-to-Lug
44.20mm
47.7mm
Lug Width
22mm
22mm
Water Resistance
300m
200m
Crystal & Dial
2 specsAR Coating
Inner
Anti-reflective coating on inner surface
Lume
BGW9
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
NH35
4R36
Power Reserve
40h
41h
Jewels
25
24
Pricing
1 specsMSRP
$275
$795
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