A fabulous Buren Grand Prix moonphase triple calendar watch from c.1950.
 
The watch with original champage dial has gilt polished Arabic numerals and black outer minute track. Gilt dauphine hour hands and subsidiary seconds dial with moonphase function at 6 o'clock.
 
Slight staining to face consistent with age.
 
The watch has day and month apertures at 9 and 3 and a red pyramid date hand with outer date marker track.
 
Watch with original winder and concealed buttons for changing date and month.
 
Leather strap. Face signed BUREN Grand Prix.
 
Era: Mid Century, c.1940 - 1960
Movement: Swiss mechanical movement
Measurements: Case diameter 35 mm
Hallmarks: Watch case steel