Which is cheaper, the Hamilton Khaki Aviation Air Race Auto or the Hemel HFC Mechanical Chronograph?

At MSRP the Hemel HFC Mechanical Chronograph is the cheaper of the two at $550, against $845 for the Hamilton Khaki Aviation Air Race Auto — a $295 gap before any retailer discounting.

Which is bigger, the Hamilton Khaki Aviation Air Race Auto or the Hemel HFC Mechanical Chronograph?

The Hemel HFC Mechanical Chronograph wears larger at 40mm versus 38mm for the Hamilton Khaki Aviation Air Race Auto — a 2mm difference across the dial.

Which has better water resistance, the Hamilton Khaki Aviation Air Race Auto or the Hemel HFC Mechanical Chronograph?

The Hemel HFC Mechanical Chronograph is rated to 100m versus 50m for the Hamilton Khaki Aviation Air Race Auto.

Which has a longer power reserve, the Hamilton Khaki Aviation Air Race Auto or the Hemel HFC Mechanical Chronograph?

The Hamilton Khaki Aviation Air Race Auto carries a 80-hour power reserve against 40 hours on the Hemel HFC Mechanical Chronograph.

What movement does the Hamilton Khaki Aviation Air Race Auto run compared to the Hemel HFC Mechanical Chronograph?

The Hamilton Khaki Aviation Air Race Auto runs a automatic caliber (H-10), while the Hemel HFC Mechanical Chronograph runs a manual (Seagull ST19).

Side by side

Hamilton Khaki Aviation Air Race AutovsHemel HFC Mechanical Chronograph

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

Hamilton Khaki Aviation Air Race Auto

h76235731

MSRP $845

Hemel HFC Mechanical Chronograph

the-airfoil

MSRP $550

At a glance

13 of 29 specs differ

Diameter

Khaki Aviation Air Race Auto38mm

HFC Mechanical Chronograph40mm

Power Reserve

Khaki Aviation Air Race Auto80h

HFC Mechanical Chronograph40h

Water Resistance

Khaki Aviation Air Race Auto50m

HFC Mechanical Chronograph100m

MSRP

Khaki Aviation Air Race Auto$845

HFC Mechanical Chronograph$550

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Crystal

Sapphire

Domed Sapphire

Dial Color

Black

Airfoil (1970s British Pilot)

Movement

3 specs

Caliber

H-10

Seagull ST19

Type

Automatic

Manual

Power Reserve

80h

40h

Pricing

1 specs

MSRP

$845

$550

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