International Watch Co.: An 18ct. gold perpetual calendar and moonphase automatic wristwatch, model Da Vinci, in circular case with hinged hooded lugs, the white dial with raised baton numerals, subsidiary dials for running seconds combined with day ring, date ring 1-31, month ring combined with elapsed hours, elapsed minute ring combined with sector for the moon, sweep centre seconds operated by two round buttons in the band, aperture for the year, valid until the year 2199, the case with screw down winder, the back signed by the makers and numbered 2386334, with original leather strap and makers gold buckle, a spare gold flexible bracelet, date change tool, a spare century date slide in sealed glass tube, makers set of instructions, guarantee dated 1990, in presentation box