Which is cheaper, the Praesidus Neptune 44 or the Seiko Prospex LX line?

At MSRP the Praesidus Neptune 44 is the cheaper of the two at $550, against $6,500 for the Seiko Prospex LX line — a $5,950 gap before any retailer discounting.

Which is bigger, the Praesidus Neptune 44 or the Seiko Prospex LX line?

The Seiko Prospex LX line wears larger at 44.8mm versus 44mm for the Praesidus Neptune 44 — a 0.8mm difference across the dial.

Which has better water resistance, the Praesidus Neptune 44 or the Seiko Prospex LX line?

The Seiko Prospex LX line is rated to 300m versus 200m for the Praesidus Neptune 44.

Which has a longer power reserve, the Praesidus Neptune 44 or the Seiko Prospex LX line?

The Seiko Prospex LX line carries a 72-hour power reserve against 40 hours on the Praesidus Neptune 44.

What movement does the Praesidus Neptune 44 run compared to the Seiko Prospex LX line?

The Praesidus Neptune 44 runs a automatic caliber (Miyota 9039), while the Seiko Prospex LX line runs a spring drive (5R65).

Side by side

Praesidus Neptune 44vsSeiko Prospex LX line

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

Praesidus Neptune 44

neptune-44-brown

MSRP $550

Seiko Prospex LX line

snr029j1

MSRP $6,500

At a glance

14 of 29 specs differ

Diameter

Neptune 4444mm

Prospex LX line44.8mm

Power Reserve

Neptune 4440h

Prospex LX line72h

Water Resistance

Neptune 44200m

Prospex LX line300m

MSRP

Neptune 44$550

Prospex LX line$6,500

Full specifications

Case

5 specs

Diameter

44mm

44.8mm

Thickness

—

15.7mm

Lug-to-Lug

—

50.9mm

Material

316L Stainless Steel

Titanium

Water Resistance

200m

300m

Crystal & Dial

4 specs

Crystal

Domed Sapphire

Sapphire

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Patina

Black

Lume

None

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

Miyota 9039

5R65

Type

Automatic

Spring Drive

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$550

$6,500

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Praesidus Neptune 44vsSeiko Prospex LX line

At a glance

Full specifications

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