Which is cheaper, the Hamilton Khaki Aviation Takeoff Auto Chrono or the Hemel Sky Racer Mechanical?

At MSRP the Hemel Sky Racer Mechanical is the cheaper of the two at $550, against $3,575 for the Hamilton Khaki Aviation Takeoff Auto Chrono — a $3,025 gap before any retailer discounting.

Which is bigger, the Hamilton Khaki Aviation Takeoff Auto Chrono or the Hemel Sky Racer Mechanical?

The Hamilton Khaki Aviation Takeoff Auto Chrono wears larger at 46mm versus 43mm for the Hemel Sky Racer Mechanical — a 3mm difference across the dial.

Which has a longer power reserve, the Hamilton Khaki Aviation Takeoff Auto Chrono or the Hemel Sky Racer Mechanical?

The Hamilton Khaki Aviation Takeoff Auto Chrono carries a 60-hour power reserve against 40 hours on the Hemel Sky Racer Mechanical.

What movement does the Hamilton Khaki Aviation Takeoff Auto Chrono run compared to the Hemel Sky Racer Mechanical?

The Hamilton Khaki Aviation Takeoff Auto Chrono runs a automatic caliber (H-31), while the Hemel Sky Racer Mechanical runs a manual (Seagull ST19).

Side by side

Hamilton Khaki Aviation Takeoff Auto ChronovsHemel Sky Racer Mechanical

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

Hamilton Khaki Aviation Takeoff Auto Chrono

h76786733

MSRP $3,575

Hemel Sky Racer Mechanical

HF37MNB

MSRP $550

At a glance

11 of 29 specs differ

Diameter

Khaki Aviation Takeoff Auto Chrono46mm

Sky Racer Mechanical43mm

Power Reserve

Khaki Aviation Takeoff Auto Chrono60h

Sky Racer Mechanical40h

Water Resistance

Khaki Aviation Takeoff Auto Chrono50m

Sky Racer Mechanical50m

MSRP

Khaki Aviation Takeoff Auto Chrono$3,575

Sky Racer Mechanical$550

Full specifications

Case

6 specs

Crystal & Dial

1 specs

Crystal

Sapphire

Domed Sapphire

Movement

3 specs

Caliber

H-31

Seagull ST19

Type

Automatic

Manual

Power Reserve

60h

40h

Pricing

1 specs

MSRP

$3,575

$550

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