Which is cheaper, the Praesidus Neptune 44 or the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

At MSRP the Praesidus Neptune 44 is the cheaper of the two at $550, against $1,350 for the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition — a $800 gap before any retailer discounting.

Which is bigger, the Praesidus Neptune 44 or the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

The Praesidus Neptune 44 wears larger at 44mm versus 42.7mm for the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition — a 1.3mm difference across the dial.

Which has a longer power reserve, the Praesidus Neptune 44 or the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition carries a 70-hour power reserve against 40 hours on the Praesidus Neptune 44.

What movement does the Praesidus Neptune 44 run compared to the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

Both watches run automatic movements — the Praesidus Neptune 44 uses the Miyota 9039 and the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition uses the 6R35.

Side by side

Praesidus Neptune 44vsSeiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

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 Sea 1970 Heritage Diver's Save the Ocean Special Edition

spb301j1

MSRP $1,350

At a glance

14 of 29 specs differ

Diameter

Neptune 4444mm

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition42.7mm

Power Reserve

Neptune 4440h

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition70h

Water Resistance

Neptune 44200m

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition200m

MSRP

Neptune 44$550

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition$1,350

Full specifications

Case

5 specs

Diameter

44mm

42.7mm

Thickness

—

13.2mm

Lug-to-Lug

—

46.4mm

Lug Width

22mm

20mm

Material

316L Stainless Steel

Stainless Steel

Crystal & Dial

5 specs

Crystal

Domed Sapphire

Sapphire

Crystal Shape

Flat

Curved

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

6R35

Power Reserve

40h

70h

Jewels

Pricing

1 specs

MSRP

$550

$1,350

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