A US military Hamilton 24-hour elapsed time five dial aircraft clock, 1940s,

AN5741-1, no.2175, the main 24-hour clock face, and four subsidiary dials, a seconds, a 32-day CIVIL DATE dial, a 12-hour dial for ELAPSED TIME, and a dial for 60 minutes or hours and a chronograph hand, the back case moulded with serial numbers

dial, 7.5cm diameter, 8cm overall

Provenance:

The John Mitchell Collection of Military Horology

Condition Report:

Not working with some wear.