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Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited EditionvsPraesidus Neptune 44

Q: Which is cheaper, the Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition or the Praesidus Neptune 44?

At MSRP the Praesidus Neptune 44 is the cheaper of the two at $550, against $3,900 for the Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition — a $3,350 gap before any retailer discounting.

Q: Which is bigger, the Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition or the Praesidus Neptune 44?

The Praesidus Neptune 44 wears larger at 44mm versus 42.6mm for the Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition — a 1.4mm difference across the dial.

Q: Which has better water resistance, the Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition or the Praesidus Neptune 44?

The Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition is rated to 300m versus 200m for the Praesidus Neptune 44.

Q: Which has a longer power reserve, the Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition or the Praesidus Neptune 44?

The Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition carries a 72-hour power reserve against 40 hours on the Praesidus Neptune 44.

Q: What movement does the Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition run compared to the Praesidus Neptune 44?

Both watches run automatic movements — the Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition uses the 8L45 and the Praesidus Neptune 44 uses the Miyota 9039.

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

Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition

hbf002j1

MSRP $3,900

Praesidus Neptune 44

neptune-44-brown

MSRP $550

At a glance

15 of 29 specs differ

Diameter

Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition42.6mm

Neptune 4444mm

Power Reserve

Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition72h

Neptune 4440h

Water Resistance

Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition300m

Neptune 44200m

MSRP

Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition$3,900

Neptune 44$550

Full specifications

Case

6 specs

Diameter

42.6mm

44mm

Thickness

14.1mm

—

Lug-to-Lug

49.3mm

—

Lug Width

20mm

22mm

Material

Stainless Steel

316L Stainless Steel

Water Resistance

300m

200m

Crystal & Dial

5 specs

Crystal

Sapphire

Domed Sapphire

Crystal Shape

Curved

Flat

AR Coating

Anti-reflective coating on inner surface

Inner

Dial Color

Black

Patina

Lume

LumiBrite on hands, index(es) and bezel

None

Movement

3 specs

Caliber

8L45

Miyota 9039

Power Reserve

72h

40h

Jewels

Pricing

1 specs

MSRP

$3,900

$550

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