Collar watch in yellow gold AC (750). Dial with white background, indexes with Roman numerals painted in black and rail for the minutes. Mechanical movement with key winding. Dust cover in yellow gold AC (750) with guilloche decoration. Cover with grained decoration centered on an unengraved cartouche, numbered on the reverse 23941. Gross weight : 24 g. - Diameter: 31 mm. With its winding key.