Which is cheaper, the Praesidus Neptune 44 or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

At MSRP the Praesidus Neptune 44 is the cheaper of the two at $550, against $2,500 for the Seiko Prospex SPEEDTIMER Mechanical Chronograph — a $1,950 gap before any retailer discounting.

Which is bigger, the Praesidus Neptune 44 or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Praesidus Neptune 44 wears larger at 44mm versus 42mm for the Seiko Prospex SPEEDTIMER Mechanical Chronograph — a 2mm difference across the dial.

Which has better water resistance, the Praesidus Neptune 44 or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Praesidus Neptune 44 is rated to 200m versus 10m for the Seiko Prospex SPEEDTIMER Mechanical Chronograph.

Which has a longer power reserve, the Praesidus Neptune 44 or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Seiko Prospex SPEEDTIMER Mechanical Chronograph 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 SPEEDTIMER Mechanical Chronograph?

Both watches run automatic movements — the Praesidus Neptune 44 uses the Miyota 9039 and the Seiko Prospex SPEEDTIMER Mechanical Chronograph uses the 8R48.

Side by side

Praesidus Neptune 44vsSeiko Prospex SPEEDTIMER Mechanical Chronograph

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 SPEEDTIMER Mechanical Chronograph

srq047j1

MSRP $2,500

At a glance

16 of 29 specs differ

Diameter

Neptune 4444mm

Prospex SPEEDTIMER Mechanical Chronograph42mm

Power Reserve

Neptune 4440h

Prospex SPEEDTIMER Mechanical Chronograph45h

Water Resistance

Neptune 44200m

Prospex SPEEDTIMER Mechanical Chronograph100m

MSRP

Neptune 44$550

Prospex SPEEDTIMER Mechanical Chronograph$2,500

Full specifications

Case

7 specs

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 and index(es)

Movement

3 specs

Caliber

Miyota 9039

8R48

Power Reserve

40h

45h

Jewels

Pricing

1 specs

MSRP

$550

$2,500

Follow this matchup

Get a note when Praesidus Neptune 44 vs Seiko Prospex SPEEDTIMER Mechanical Chronograph gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring