Side by side

Borealis Watch Co. NeptunovsSeiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition

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

Neptuno
Borealis Watch Co.Neptuno
MSRP $390

At a glance

13 of 29 specs differ
Diameter
Neptuno40.00mm
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition42.5mm
Power Reserve
Neptuno40h
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition45h
Water Resistance
Neptuno300m
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition100m
MSRP
Neptuno$390
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition$3,000

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
40.00mm
42.5mm
Thickness
14.10mm
15.1mm
Lug-to-Lug
47.20mm
50mm
Lug Width
20mm
20mm
Water Resistance
300m
100m

Crystal & Dial

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

Movement

3 specs
Caliber
NH38
8R46
Power Reserve
40h
45h
Jewels
25
34

Pricing

1 specs
MSRP
$390
$3,000

Follow this matchup

Get a note when Borealis Watch Co. Neptuno vs Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition 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.