French jumping and wandering hour dress watch Circa 1928

Very rare platinum open faced keyless lever by Breguet
–
A fine and very rare French platinum open faced jumping and wandering hour keyless lever dress watch, circa 1928. Sold on 21 January 1928 to M. Kosloff for the sum of 12’640 French Francs. Nickel finished lever movement, 19 jewels, bimetallic compensation balance. Two-tone silvered matte dial, outer Arabic minute ring, wandering central disc with engine turned arrow and aperture for the jumping Arabic hours. Plain Murat case, snap on back. Case numbered, dial and movement signed and numbered.
–
Diameter: 44 mm
–
Signed: Breguet Brevet S.G.D.G. Chronoscope
–
A masterpieces from the workshop of the celebrated master watchmaker Abraham-Louis Breguet (1747-1823), ‘Watchmaker of the Kings, King of Watchmakers’.