Chronograph wristwatch in 18k gold and steel, composed of a case and bracelet made by Gay Frères, prototype for the house of Breguet, Type 20 Aeronavale, ref. 3800, according to information provided by the seller.

Movement: automatic Case: diam. 39 mm, unidirectional rotating bezel Complications: chronograph with central seconds, subsidiary seconds counter Breguet signature: dial, case Gay Frères signature: case, bracelet Lemania signature: movement

According to the seller's information: This is a prototype. The uniqueness of this piece lies in the creation of a highly secure bracelet, which was never commercialized. As it is a prototype, the flyback function and the reset mechanism for the hour and minute counters were not installed, and therefore the movement is not operational.