Side by side

Borealis Watch Co. Caloura 300mvsSeiko Prospex Sea

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Caloura 300m
Borealis Watch Co.Caloura 300m
MSRP $275
Prospex Sea
SeikoProspex Sea
MSRP $795

At a glance

10 of 29 specs differ
Diameter
Caloura 300m42mm
Prospex Sea34mm
Power Reserve
Caloura 300m40h
Prospex Sea40h
Water Resistance
Caloura 300m300m
Prospex Sea200m
MSRP
Caloura 300m$275
Prospex Sea$795

Full specifications

Case

5 specs
Diameter
42mm
34mm
Thickness
13.9mm
8.7mm
Lug-to-Lug
44.20mm
40.8mm
Lug Width
22mm
16mm
Water Resistance
300m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
BGW9
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
NH35
6N01
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$275
$795

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