The Graves Supercomplication watch had 24 complications, and took over five years to design and manufacture the 900 parts making up the complicated and expensive pocket watch. The Graves Supercomplication had more complications than any other timepiece ever created until Patek Phillipe outdid themselves in 1989 with the Caliber â€™89, which surpassed the by containing 33 complications. Among the secondary functions featured by Gravesâ€™s pocket watch was a celestial chart based on the night sky above Gravesâ€™ home in New York. After Graves died the watch ended up in Seth G. Atwoodâ€™s Time Museum in Rockford, Illinois from 1953 to 1999.
When the museum closed in 1999, the watch was sold at Sothebyâ€™s Masterpieces from the Time Museum auction. On December 2, 1999 the worldâ€™s most expensive pocket watch ever became the Graves Supercomplication when an anonymous Middle Eastern collector made the final bid of $10 million dollars.