Patek Philippe released their first Ladies perpetual calendar, reference 7140. There has been a need for more complicated Ladies watches; this was a trend this year at Basel. Patek Philippe reference 7140 is in an 18K rose gold Calatrava case with curved lugs and a white dial. The watch has two interchangeable alligator bands, mink gray and royal purple. The bezel consists of 68 Top Wesselton diamonds and 27 diamonds on the clasp. There are eight indicators including: hours, minutes, date, day of the week, month, leap-year cycle, 24-hour subdial and moon phases. This is an exquisite addition to Patek Philippe ladies collection.