18k white gold, fliptop Wrist Chronometer no. 4293

Case: flip-top 18k white gold Dial: silvered dial, hours, minutes and seconds subdial, signed Henri Blanc, Geneve Movement: 10''' tonneau, 18 jewels, all adj, 2 x Poincon de Geneve quality seal Provenance: 1928 - Niton, Geneve 2017 - Watch Attitude, Geneva (former) Source; Watch Attitude, Geneva-Switzerland, Henri Blanc 18k white gold rectangular case, Functions; simple hour, min, sec, Typical; Cabriolette wristwatch, hand engraved