This is the Patek Philippe Ultra Thin Perpetual Calendar Watch. A very elegant, round 18K rose gold case and bezel and a well laid out, eye-catching dial set the masculine timepiece apart from others. Measuring 37mm, the self-winding timepiece is at least 5 or 6mm smaller than most modern gents' models and this well-thought size adds a refreshing sense of style to the design. The brown sunburst dial features applied gold index hour markers and polished, gold-toned hour and minute hands, date subdial with moon-phase display at 6 o'clock, month subdial with with day/night indicator at 9 o'clock, and month display subdial at 3 o'clock, and a bold Patek Philippe logo below the 12 o'clock marker. The watch uses a sturdy, brown crocodile leather strap with deployment buckle and features a transparent sapphire crystal caseback.