Excellent Mens Patek Philippe Calatrava Quality 3445J Manual Wind Black Crocodile Leather will be a nice addition for your collection. It employs Manual Wind movement and has great BlackCrocodile Leather bracelet which looks very classic. It also comes with great Grey dial. You must love this 18k Yellow Gold case watch, because of its captivating Round. The 35mm Mens watch can resist water in some degree, but you’ better put it away from water to prolong its working life.