Case is 34mm diameter, 18k white gold. Movement is manual calibre 7001 with 19 jewels. Leather strap with 18k white gold Falcone pin buckle. Circa 1985. Case, dial, movement and buckle signed. Estimate CHF60,000 to 120,000.  Sold for CHF 889,000 at Phillips Auctions May 10 2026 Geneva