Side by side

Borealis Watch Co. JamantavsSeiko Prospex Sea

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

Jamanta
Borealis Watch Co.Jamanta
MSRP $415
Prospex Sea
SeikoProspex Sea
MSRP $900

At a glance

12 of 29 specs differ
Diameter
Jamanta42.50mm
Prospex Sea41mm
Power Reserve
Jamanta40h
Prospex Sea70h
Water Resistance
Jamanta300m
Prospex Sea200m
MSRP
Jamanta$415
Prospex Sea$900

Full specifications

Case

5 specs
Diameter
42.50mm
41mm
Thickness
13.30mm
12.3mm
Lug-to-Lug
50.40mm
46.9mm
Lug Width
22mm
20mm
Water Resistance
300m
200m

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
BGW9
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9015
6R35
Power Reserve
40h
70h
Jewels
25
24

Pricing

1 specs
MSRP
$415
$900

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