Very fine Swiss gold chronograph pocket watch Circa 1939

Gold chronograph by Patek Phillipe
–
A very fine, extremely rare Swiss 18-carat gold open faced chronograph pocket watch, circa 1939. Rhodium-plated 3/4 plate movement, fausses côtes decoration, eight adjustments, 23 jewels, mirror polished screws, steel chronograph parts, ratchet wheel, gold screwed compensation balance, blued balance spring, ruby endstone on the escape wheel. Plain case, push back with inner presentation engraving Homenaje de los socios empleados y obreros 26.06.1940 de Eduardo Retienne SenC. al Sr. Don Jose Costa Gomez. Silvered dial, applied indexes, Arabic numerals, auxiliary seconds, 30 min. counter, tachy scale and baton hands. It comes with an original certificate and Extracts from the Archives.
–
Diameter: 46 mm
–
Weight: 67 g
–
Signed: Patek Philippe & Cie Genève