The Henry Graves Supercomplication watch sold for $ 11 million . It is the most expensive watch to sell at auction , smashing its own record of $ 24.4 million . Made by Packard in eight years , it 's most advanced timepiece made by hand . The watch has just 10 functions other than telling time .
The Henry Graves Supercomplication watch sold for $ 24.4 million . It is the most expensive watch to sell at auction , smashing its own record of $ 11 million . Made by Patek Phillipe in 1933 , it 's most advanced timepiece made by hand . The watch has 24 functions other than telling time .