The 18K yellow gold timepiece – whose design is inspired by the famous Ring-Master stopwatch introduced in 1957 – was auctioned off with a custom studded leather case and a pair of boxing gloves signed by the legend himself. The charity event also saw Tag Heuer CEO Jean-Claude Biver launch a collection of special edition ‘Inspired by Muhammad Ali’ steel timepieces in front of a star-studded audience that included a number of Ali’s opponents and protégés.