Which is cheaper, the Hamilton Khaki Aviation Air Race Auto or the Lum-Tec B64 Chronograph?

At MSRP the Lum-Tec B64 Chronograph is the cheaper of the two at $545, against $845 for the Hamilton Khaki Aviation Air Race Auto — a $300 gap before any retailer discounting.

Which is bigger, the Hamilton Khaki Aviation Air Race Auto or the Lum-Tec B64 Chronograph?

The Lum-Tec B64 Chronograph wears larger at 44mm versus 38mm for the Hamilton Khaki Aviation Air Race Auto — a 6mm difference across the dial.

Which has better water resistance, the Hamilton Khaki Aviation Air Race Auto or the Lum-Tec B64 Chronograph?

The Lum-Tec B64 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 Lum-Tec B64 Chronograph?

The Hamilton Khaki Aviation Air Race Auto carries a 80-hour power reserve against 40 hours on the Lum-Tec B64 Chronograph.

Side by side

Hamilton Khaki Aviation Air Race AutovsLum-Tec B64 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

Lum-Tec B64 Chronograph

b64-chronograph

MSRP $545

At a glance

12 of 29 specs differ

Diameter

Khaki Aviation Air Race Auto38mm

B64 Chronograph44mm

Power Reserve

Khaki Aviation Air Race Auto80h

B64 Chronograph40h

Water Resistance

Khaki Aviation Air Race Auto50m

B64 Chronograph100m

MSRP

Khaki Aviation Air Race Auto$845

B64 Chronograph$545

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Crystal

Sapphire

Domed Sapphire

Dial Color

Black

Standard

Movement

2 specs

Caliber

H-10

—

Power Reserve

80h

40h

Pricing

1 specs

MSRP

$845

$545

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