This Patek Philippe Calatrava 5000J Mens watch hosts an automatic 801503 movement. The 33mm case is made of 18K yellow gold. It features a black dial with Arabic numeral markers, a small seconds sub-dial, and an exhibition case back. It comes on an alligator leather strap with an 18K yellow gold deployant buckle. original box and papers included. Patek Philippe is a Swiss luxury watch company that was founded in 1839, and are considered the epitome of luxury and are highly sought after by collectors and enthusiasts.