This masculine A. Lange & Söhne watch is named 1815 Rattrapante Perpetual Calendar to commemorate the year Ferdinand A. Lange was born. Its silver dial is characterized by four multi-purpose dials that display perpetual calendar with leap year, date, day of week, month, and moon phase, a novel 'up-and-down' power reserve indicator, small seconds and chronograph with minute counter. Hours and minutes are shown at the center using two elegant blue hands and black Arabic numeral hour markers. The case is made from platinum 950 while the strap is made from black crocodile leather and features a sturdy tang clasp.
