Which is bigger, the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono or the Impossible Watch Company IMP CHRONOGRAPH?

The Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono wears larger at 40mm versus 38.5mm for the Impossible Watch Company IMP CHRONOGRAPH — a 1.5mm difference across the dial.

Which has a longer power reserve, the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono or the Impossible Watch Company IMP CHRONOGRAPH?

The Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono carries a 60-hour power reserve against 42 hours on the Impossible Watch Company IMP CHRONOGRAPH.

What movement does the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono run compared to the Impossible Watch Company IMP CHRONOGRAPH?

Both watches run manual movements — the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono uses the H-51-Si and the Impossible Watch Company IMP CHRONOGRAPH uses the ST1901.

Side by side

Hamilton Khaki Aviation Pilot Pioneer Mechanical ChronovsImpossible Watch Company IMP CHRONOGRAPH

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

Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono

h76409140

MSRP $2,445

Impossible Watch Company IMP CHRONOGRAPH

At a glance

11 of 29 specs differ

Diameter

Khaki Aviation Pilot Pioneer Mechanical Chrono40mm

IMP CHRONOGRAPH38.5mm

Power Reserve

Khaki Aviation Pilot Pioneer Mechanical Chrono60h

IMP CHRONOGRAPH42h

Water Resistance

Khaki Aviation Pilot Pioneer Mechanical Chrono100m

IMP CHRONOGRAPH30m

MSRP

Khaki Aviation Pilot Pioneer Mechanical Chrono$2,445

IMP CHRONOGRAPH—

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Crystal

Sapphire

Dial Color

Blue

Silver Gilt

Movement

2 specs

Caliber

H-51-Si

ST1901

Power Reserve

60h

42h

Pricing

1 specs

MSRP

$2,445

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