Which is cheaper, the Hamilton Jazzmaster Open Heart Auto or the Hemel HD24 Automatic?

At MSRP the Hemel HD24 Automatic is the cheaper of the two at $300, against $2,695 for the Hamilton Jazzmaster Open Heart Auto — a $2,395 gap before any retailer discounting.

Which is bigger, the Hamilton Jazzmaster Open Heart Auto or the Hemel HD24 Automatic?

The Hemel HD24 Automatic wears larger at 40mm versus 36mm for the Hamilton Jazzmaster Open Heart Auto — a 4mm difference across the dial.

Which has better water resistance, the Hamilton Jazzmaster Open Heart Auto or the Hemel HD24 Automatic?

The Hemel HD24 Automatic 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 Hemel HD24 Automatic?

The Hamilton Jazzmaster Open Heart Auto carries a 80-hour power reserve against 40 hours on the Hemel HD24 Automatic.

What movement does the Hamilton Jazzmaster Open Heart Auto run compared to the Hemel HD24 Automatic?

Both watches run automatic movements — the Hamilton Jazzmaster Open Heart Auto uses the H-10 and the Hemel HD24 Automatic uses the Seiko NH38A.

Side by side

Hamilton Jazzmaster Open Heart AutovsHemel HD24 Automatic

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

Hemel HD24 Automatic

the-gallant

MSRP $300

At a glance

12 of 29 specs differ

Diameter

Jazzmaster Open Heart Auto36mm

HD24 Automatic40mm

Power Reserve

Jazzmaster Open Heart Auto80h

HD24 Automatic40h

Water Resistance

Jazzmaster Open Heart Auto50m

HD24 Automatic200m

MSRP

Jazzmaster Open Heart Auto$2,695

HD24 Automatic$300

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Crystal

Sapphire

Domed Sapphire

Dial Color

Mother of pearl

Gallant USAF Edition

Movement

2 specs

Caliber

H-10

Seiko NH38A

Power Reserve

80h

40h

Pricing

1 specs

MSRP

$2,695

$300

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