A beautiful and unique set of four 3970 perpetual calendar chronograph wristwatches has emerged from luxury watchmaker Patek Philippe . Each watch in the set is made in a metal that the original 3970 was produced in: 18k yellow gold, 18k rose gold, 18k white gold and platinum. In addition, each watch has a special diamond dial. The 3970 case is 36mm in diameter and 13mm thick and features sapphire crystal and a solid case back. Originally created by Patek Philippe for an important Asian collector, the watches also feature diamond marker dials; each watch paired with a different colored diamond, (salmon, grey, black and yellow). All the watches have crocodile Patek Philippe straps with Patek buckles matching the metal of each case. The set of four watches is being sold by Harris Connor.