The Patek Philippe First Ladies Chronograph which goes under the reference 70171 R is the first time Patek Philippe have put a chronograph movement inside a ladies watch. The Patek Philippe First Ladies Chronograph features the new CH 29-535 PS manually wound movement which has a chronograph function. The cushion shaped case is made of rose gold and the space around the dial is encrusted with one hundred and thirty six diamonds. The watch features an alligator strap and is available with either a black or white face.