Swiss extremely rare complicated repeating watch Circa 1930

Gold open faced complicated pocket watch by Vacheron & Constantin
–
A very fine, extremely rare Geneva gentleman’s minute repeating pocket watch with perpetual calendar, moon phase, split seconds chronograph and 30 min. counter, circa 1930.
18 carat gold case with signed gold dome, pusher for chronograph at “11” and slide for repeating mechanism. Silver dial with Arabic “Art Deco” numerals, auxiliary seconds, 30 min. counter, seconds, inserted day, date and month indicator with leap year compensation, cobalt blue enamelled moon phase disc with inlaid golden stars and moon and blued spade hands. Rhodium-plated bridge movement with 8 adj., 39 jewels, finely ground chronograph steel parts, ratchet wheel, 2 hammers, 2 gongs, screw compensation balance with pink gold screws and blued balance spring.
–
Diameter: 49 mm
–
Weight: 123 g
–
Signed: Vacheron & Constantin à Genève, “Chronomètre”