LOT 294 Very fine and rare 18k white gold, world time, self-winding wristwatch with indication of 24 times zones, silver colour and polychrome cloisonné enamel dial displaying the European, African,...

LOT 272 Very fine and rare platinum, 18k yellow gold, 18k pink gold and 18K white gold manual-winding wristwatches with perpetual calendar and moon- phases. CHF 500,000 - 800,000

LOT 267 Very fine and extremely rare stainless steel, self-winding, two time zone wristwatch, tropical gilt dial with date and an added original bakelite bezel. CHF 40,000 - 60,000

LOT 266 Very rare stainless steel, self-winding diver's wristwatch, "double red" patinated black dial with date and helium escape valve. CHF 22,000 - 32,000