Which is cheaper, the Hamilton Khaki Aviation Air Race Auto or the Borealis Watch Co. Jamanta?

At MSRP the Borealis Watch Co. Jamanta is the cheaper of the two at $415, against $845 for the Hamilton Khaki Aviation Air Race Auto — a $430 gap before any retailer discounting.

Which is bigger, the Hamilton Khaki Aviation Air Race Auto or the Borealis Watch Co. Jamanta?

The Borealis Watch Co. Jamanta wears larger at 42.50mm versus 38mm for the Hamilton Khaki Aviation Air Race Auto — a 4.5mm difference across the dial.

Which has better water resistance, the Hamilton Khaki Aviation Air Race Auto or the Borealis Watch Co. Jamanta?

The Borealis Watch Co. Jamanta is rated to 300m 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 Borealis Watch Co. Jamanta?

The Hamilton Khaki Aviation Air Race Auto carries a 80-hour power reserve against 40 hours on the Borealis Watch Co. Jamanta.

What movement does the Hamilton Khaki Aviation Air Race Auto run compared to the Borealis Watch Co. Jamanta?

Both watches run automatic movements — the Hamilton Khaki Aviation Air Race Auto uses the H-10 and the Borealis Watch Co. Jamanta uses the Miyota 9015.

Side by side

Hamilton Khaki Aviation Air Race AutovsBorealis Watch Co. Jamanta

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

Borealis Watch Co.Jamanta

prometheus-jamanta-black-dial-date-miyota-9015

MSRP $415

At a glance

10 of 29 specs differ

Diameter

Khaki Aviation Air Race Auto38mm

Jamanta42.50mm

Power Reserve

Khaki Aviation Air Race Auto80h

Jamanta40h

Water Resistance

Khaki Aviation Air Race Auto50m

Jamanta300m

MSRP

Khaki Aviation Air Race Auto$845

Jamanta$415

Full specifications

Case

6 specs

Crystal & Dial

1 specs

Lume

None

BGW9

Movement

2 specs

Caliber

H-10

Miyota 9015

Power Reserve

80h

40h

Pricing

1 specs

MSRP

$845

$415

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