Which is cheaper, the Sinn 144 St DIAPAL or the Hemel HD24 Automatic?

At MSRP the Hemel HD24 Automatic is the cheaper of the two at $300, against $4,428 for the Sinn 144 St DIAPAL — a $4,128 gap before any retailer discounting.

Which is bigger, the Sinn 144 St DIAPAL or the Hemel HD24 Automatic?

The Sinn 144 St DIAPAL wears larger at 41mm versus 40mm for the Hemel HD24 Automatic — a 1mm difference across the dial.

Which has a longer power reserve, the Sinn 144 St DIAPAL or the Hemel HD24 Automatic?

The Sinn 144 St DIAPAL carries a 48-hour power reserve against 40 hours on the Hemel HD24 Automatic.

What movement does the Sinn 144 St DIAPAL run compared to the Hemel HD24 Automatic?

Both watches run automatic movements — the Sinn 144 St DIAPAL uses the LJP 8000 and the Hemel HD24 Automatic uses the Seiko NH38A.

Side by side

Sinn 144 St DIAPALvsHemel HD24 Automatic

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

Sinn 144 St DIAPAL

144 St DIAPAL

MSRP $4,428

Hemel HD24 Automatic

the-gallant

MSRP $300

At a glance

18 of 29 specs differ

Diameter

144 St DIAPAL41mm

HD24 Automatic40mm

Power Reserve

144 St DIAPAL48h

HD24 Automatic40h

Water Resistance

144 St DIAPAL200m

HD24 Automatic200m

MSRP

144 St DIAPAL$4,428

HD24 Automatic$300

Full specifications

Case

7 specs

Crystal & Dial

6 specs

Crystal

Sapphire

Domed Sapphire

Crystal Shape

—

Flat

AR Coating

Underside

Inner

Dial Color

Anthracite

Gallant USAF Edition

Indices

—

Applied

Lume

Luminescent

None

Movement

4 specs

Caliber

LJP 8000

Seiko NH38A

Power Reserve

48h

40h

Jewels

Complications

GMT, Date, Chronograph, Tachymeter

None

Pricing

1 specs

MSRP

$4,428

$300

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Sinn 144 St DIAPALvsHemel HD24 Automatic

At a glance

Full specifications

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