Wrist Watch no.

Case: Ladies Dial: Movement: s/n; 860705, baguette caliber 6 ligne (2 3/4 x 8 3/4''' ~6.2 mm x 19,7 mm), 18 jewels, Patek Philippe & Co., Geneva, Swiss Provenance: 1937 - Niton, Geneva 1937 - Patek Philippe, Geneva 1988 - book Patek Philippe, Geneve by Martin Huber & Alan Banbery (1988), page 32, No.24, 18 jewels, bimaetallic balance, flat hairspring; ebauche by Niton