18k yellow gold Chronometer no. -

Case: 18k yellow gold case measures 43 mm Dial: champagne dial with dot and baton numerals signed Patek Philippe & Co. Geneve, sward hands Movement: s/n; 860'188, caliber 17 ligne, Eighteen 18 jewels, all adjustments, 2 Poincon de Geneve quality seals, Patek Philippe & Co., Geneve, Swiss (it is a movement only, sadly the case is discarted) Provenance: 1938 - Niton, Geneve (still validating, ebauche and/or finished by Niton, CH Meylan or ?) 1938 - Patek Philippe, Geneve 1989 - Sotheby's, London 2019 - ebay Sotheby's, London, March 23, 1989, Lot 81, Patek Philippe No. 860'188 Please notice a similar dress watch with movement serial number No. 860,189; https://jewelry.ha.com/itm/timepieces/pocket-post-1900-/patek-philippe-rare-art-deco-gold-pocket-watch-for-walser-wald/a/5263-56233.s and; https://onlineonly.christies.com/s/christies-watches-online-keystone-collection/patek-philippe-18k-open-face-pocket-watch-retailed-walser-wald-120/73441