The Vintage Wrist Watch Company has dated this piece to the 1950s.
The movement is stamped Altitude, Jauge reserve.

The watch measures 32.8 mm diameter excluding the winding crown and 40.2 mm including the lugs. The stainless steel case has light surface marks from use but otherwise it is in nice condition. The screw-on case back is stamped stainless steel, bagobloc and water protected although with any vintage watch I would not rely on it being water protected.

The lens is in good condition.
The dial is signed Altitude Sprint, 21 Jewels, Incabloc with Made in France at the bottom. The dial has light discolouring but otherwise it is in nice condition.
The watch has its original hands.
A new black leather strap has been fitted.
Price includes worldwide postage.
The Vintage Wrist Watch Company has dated this piece to the 1950s.
Specialists in antique and vintage wrist watches and pocket watches
You can view the stock and full dealer information on the The Vintage Wrist Watch Company Profile Page