The Patek Philippe Ref 5004 was first intoduced in 1996 with a limited production of 12 pieces per year since it was so difficult and costly to manufacture. It is essentially a Ref 3970 with a split second chronograph. This model was originally created with precious metals such as gold and platinum with a 37mm diameter case and sapphire crystal protection for the front and back. The front dial is a white enameled surface with three sub-dials along with the main hour and minute hands. Three sub-dials shows split second, four-year phase, small seconds and even moon phases, where as markings on the main dial displays hours, and the final outer rings has Arabic numerical minutes. The movement is a mechanical one, governed by the CHR 27-70 Q Calibre. The strapping is brown crocodile leather.
After just fifteen short years the Ref 5004 is to be retired by Patek Philippe. To honour and celebrate the last fifty of these masterpieces will be made in stainless steel and sold exclusively at the Geneva Patek Philippe salon with a price tag of $308,000. Not surprisingly, all fifty pieces have already been sold out.