Patek Philippe, Geneve: A fine 18ct. yellow gold perpetual calendar and moonphase chronograph water-resistant wristwatch, model 3970EJ, the matt silvered dial with raised baton numerals, subsidiary dials for running seconds combined with 24-hour indication, elapsed minutes combined with leap year indication, date with sector for the moon, apertures for day and month, sweep centre seconds operated by two round buttons in the band, the screwed back with makers mark, the signed movement jewelled to the centre with 24 jewels, adjusted to heat, cold, isochronism and to five positions, with makers brown leather strap and gold buckle, spare leather strap, gold date change tool, certificate of origin, book of instructions, and red leather wallet, mahogany presentation box and outer packaging