The Ref. 5205 -001 Annual Calendar watch features three arched windows displaying the day, date, and month. The platinum model is complemented by an elegant blue-black gradient effect on the dual-tone sunburst dial. The attention to detail is evident in the slightly concave bezel and delicate openworked lugs. This annual calendar watch shines with its fashion appeal, dynamic design, and modern style, requiring adjustment only once a year.