Which is cheaper, the Sinn 103 St DIAPAL or the Hemel HFC Mechanical Chronograph?

At MSRP the Hemel HFC Mechanical Chronograph is the cheaper of the two at $550, against $4,320 for the Sinn 103 St DIAPAL — a $3,770 gap before any retailer discounting.

Which is bigger, the Sinn 103 St DIAPAL or the Hemel HFC Mechanical Chronograph?

The Sinn 103 St DIAPAL wears larger at 41mm versus 40mm for the Hemel HFC Mechanical Chronograph — a 1mm difference across the dial.

Which has better water resistance, the Sinn 103 St DIAPAL or the Hemel HFC Mechanical Chronograph?

The Sinn 103 St DIAPAL is rated to 200m versus 100m for the Hemel HFC Mechanical Chronograph.

Which has a longer power reserve, the Sinn 103 St DIAPAL or the Hemel HFC Mechanical Chronograph?

The Sinn 103 St DIAPAL carries a 48-hour power reserve against 40 hours on the Hemel HFC Mechanical Chronograph.

What movement does the Sinn 103 St DIAPAL run compared to the Hemel HFC Mechanical Chronograph?

The Sinn 103 St DIAPAL runs a automatic caliber (LJP 8000), while the Hemel HFC Mechanical Chronograph runs a manual (Seagull ST19).

Side by side

Sinn 103 St DIAPALvsHemel HFC Mechanical Chronograph

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

Sinn 103 St DIAPAL

103 St DIAPAL

MSRP $4,320

Hemel HFC Mechanical Chronograph

the-airfoil

MSRP $550

At a glance

20 of 29 specs differ

Diameter

103 St DIAPAL41mm

HFC Mechanical Chronograph40mm

Power Reserve

103 St DIAPAL48h

HFC Mechanical Chronograph40h

Water Resistance

103 St DIAPAL200m

HFC Mechanical Chronograph100m

MSRP

103 St DIAPAL$4,320

HFC Mechanical Chronograph$550

Full specifications

Case

8 specs

Crystal & Dial

6 specs

Crystal

Sapphire

Domed Sapphire

Crystal Shape

—

Flat

AR Coating

Underside

Inner

Dial Color

Anthracite

Airfoil (1970s British Pilot)

Indices

—

Applied

Lume

Luminescent

None

Movement

5 specs

Caliber

LJP 8000

Seagull ST19

Type

Automatic

Manual

Power Reserve

48h

40h

Jewels

Complications

GMT, Date, Chronograph, Pilot's Bezel

None

Pricing

1 specs

MSRP

$4,320

$550

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Sinn 103 St DIAPALvsHemel HFC Mechanical Chronograph

At a glance

Full specifications

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