Anant Ambani ’s latest timepiece took 100,000 hours to craft and stands as one of the most complex watches ever made. Read on to know how much it costs. Anant Ambani has an impressive watch collection, featuring pieces like the Grandmaster Chime and Richard Mille RM 52-04, both worth crores. The price of Anant Ambani 's watch The Richard Mille RM 52-04 "Skull" Blue Sapphire watch is worth USD 2,625,000, which is approximately ₹ 22,51,90,481 or 22 crore. Anant Ambani , son of Reliance Industries Chairman Mukesh Ambani , owns a rare Richard Mille RM 52-04 Skull Blue Sapphire watch worth over ₹22 crore. Only three pieces exist in the world.