PATEK PHILIPPE F. WORONIECKI IN PINK GOLD - From 1920 Serial N° 228911 Year: 1920 circa Material: 14k pink gold Weight: 37g Dimensions: 33mm Calibre: Manual Crystal: Plexy Strap: Leather with steel clasp Patek Philippe signed antique watch in 14k pink gold with engraved: F. Woroniecki W Warszavie. Ferdynand Woroniecki is one of the most famous watchmakers in Warsaw. In 1866 he founded a watch shop in Krakowskie Przedmiescie, which remained in the same place until 1939 (ul. Czysta 2, later renamed Ossolinskich ul. 2). In addition to the shop, he also ran a workshop where he made watches that were occasionally presented at exhibitions.