Side by side

Borealis Watch Co. NeptunovsSeiko Prospex LX line

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

Neptuno
Borealis Watch Co.Neptuno
MSRP $390
Prospex LX line
SeikoProspex LX line
MSRP $6,500

At a glance

12 of 29 specs differ
Diameter
Neptuno40.00mm
Prospex LX line44.8mm
Power Reserve
Neptuno40h
Prospex LX line72h
Water Resistance
Neptuno300m
Prospex LX line300m
MSRP
Neptuno$390
Prospex LX line$6,500

Full specifications

Case

5 specs
Diameter
40.00mm
44.8mm
Thickness
14.10mm
15.7mm
Lug-to-Lug
47.20mm
50.9mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium

Crystal & Dial

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

Movement

4 specs
Caliber
NH38
5R65
Type
Automatic
Spring Drive
Power Reserve
40h
72h
Jewels
25
30

Pricing

1 specs
MSRP
$390
$6,500

Follow this matchup

Get a note when Borealis Watch Co. Neptuno vs Seiko Prospex LX line gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.