Leonidas Mod. “Sonia” clock in aluminum and Bakelite, made around 1942, and installed on the control panels of Italian fighter and bomber aircraft of the Royal Air Force, such as Reggiane, Macchi, Savoia Marchetti, Fiat P. 08, Fiat Cr etc etc .
On the dial, in addition to the “Sonia” model, there is the writing “R. Aeronautica" to guarantee its assignment to an aircraft of the same. Excellent condition.
The Leonidas Company: The company was founded in 1841 by Leonidas Bourquin Julien in Saint-Imier. He built many instruments used in the automotive and aeronautical fields and produced exceptional chronograph and second-counter calibers during the Second World War. In 1964, Leonidas merged with Heuer, which later became Tag-Heuer, with the disappearance of the Leonidas brand.