Which is cheaper, the Hamilton Jazzmaster Open Heart Auto or the Praesidus Neptune 44?

At MSRP the Praesidus Neptune 44 is the cheaper of the two at $550, against $2,695 for the Hamilton Jazzmaster Open Heart Auto — a $2,145 gap before any retailer discounting.

Which is bigger, the Hamilton Jazzmaster Open Heart Auto or the Praesidus Neptune 44?

The Praesidus Neptune 44 wears larger at 44mm versus 36mm for the Hamilton Jazzmaster Open Heart Auto — a 8mm difference across the dial.

Which has better water resistance, the Hamilton Jazzmaster Open Heart Auto or the Praesidus Neptune 44?

The Praesidus Neptune 44 is rated to 200m versus 50m for the Hamilton Jazzmaster Open Heart Auto.

Which has a longer power reserve, the Hamilton Jazzmaster Open Heart Auto or the Praesidus Neptune 44?

The Hamilton Jazzmaster Open Heart Auto carries a 80-hour power reserve against 40 hours on the Praesidus Neptune 44.

What movement does the Hamilton Jazzmaster Open Heart Auto run compared to the Praesidus Neptune 44?

Both watches run automatic movements — the Hamilton Jazzmaster Open Heart Auto uses the H-10 and the Praesidus Neptune 44 uses the Miyota 9039.

Side by side

Hamilton Jazzmaster Open Heart AutovsPraesidus Neptune 44

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

Hamilton Jazzmaster Open Heart Auto

h32205890

MSRP $2,695

Praesidus Neptune 44

neptune-44-brown

MSRP $550

At a glance

12 of 29 specs differ

Diameter

Jazzmaster Open Heart Auto36mm

Neptune 4444mm

Power Reserve

Jazzmaster Open Heart Auto80h

Neptune 4440h

Water Resistance

Jazzmaster Open Heart Auto50m

Neptune 44200m

MSRP

Jazzmaster Open Heart Auto$2,695

Neptune 44$550

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Crystal

Sapphire

Domed Sapphire

Dial Color

Mother of pearl

Patina

Movement

2 specs

Caliber

H-10

Miyota 9039

Power Reserve

80h

40h

Pricing

1 specs

MSRP

$2,695

$550

Follow this matchup

Get a note when Hamilton Jazzmaster Open Heart Auto vs Praesidus Neptune 44 gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring