Which is cheaper, the Praesidus Neptune 44 or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

At MSRP the Praesidus Neptune 44 is the cheaper of the two at $550, against $2,800 for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a $2,250 gap before any retailer discounting.

Which is bigger, the Praesidus Neptune 44 or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

The Praesidus Neptune 44 wears larger at 44mm versus 39.5mm for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a 4.5mm difference across the dial.

Which has a longer power reserve, the Praesidus Neptune 44 or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

The Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch carries a 45-hour power reserve against 40 hours on the Praesidus Neptune 44.

What movement does the Praesidus Neptune 44 run compared to the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

Both watches run automatic movements — the Praesidus Neptune 44 uses the Miyota 9039 and the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch uses the 6L37.

Side by side

Praesidus Neptune 44vsSeiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

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 Marinemaster Marinemaster 1965 Heritage Diver's Watch

sje117j1

MSRP $2,800

At a glance

14 of 29 specs differ

Diameter

Neptune 4444mm

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch39.5mm

Power Reserve

Neptune 4440h

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch45h

Water Resistance

Neptune 44200m

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch200m

MSRP

Neptune 44$550

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch$2,800

Full specifications

Case

5 specs

Diameter

44mm

39.5mm

Thickness

—

12.3mm

Lug-to-Lug

—

47.2mm

Lug Width

22mm

20mm

Material

316L Stainless Steel

Stainless Steel

Crystal & Dial

5 specs

Crystal

Domed Sapphire

Sapphire

Crystal Shape

Flat

Box

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Patina

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Miyota 9039

6L37

Power Reserve

40h

45h

Jewels

Pricing

1 specs

MSRP

$550

$2,800

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