PATEK PHILIPPE. AN 18K YELLOW GOLD OPENFACE KEYLESS LEVER POCKET WATCH WITH SPLIT SECOND CHRONOGRAPH
Signed Patek Philippe & Cie, Geneva, Switzerland, No. 137932, circa 1905.
Rhodium finished 26-jewel lever movement with 8 adjustments, bimetallic cut compensation balance, swan-neck micrometer adjustment to the regulator and fausses côtes decoration, white enamel dial with Roman numerals, subsidiary constant seconds, minute recording dial, outer minute and fifth second tracks and blued steel moon hands, circular case with hinged back and bezel, chronongraph pusher and slide lock to the band, hinged glazed cuvette, movement, dial and case signed.