With this model Piaget launched the new manufacture movement Piaget 855P with perpetual calendar. This only 5.6 mm high self-winding movement is designed, developed and manufactured completely in-house. Its functions include the display of hours and minutes, a small second at 4 o'clock, display of the months and leap years at 12 o'clock and the retrograde display of days of the week and of the date at 9 o'clock and 3 o'clock. In addition to these two retrograde displays the Calibre 855P A also provides a second timezone in a subdial at 8 o'clock with two hands, thus differing from most ordinary perpetual calendars. It oscillates with a frequency of 21,600 vibrations per hour and has a power reserve of approximately 72 hours.
The ingenious design of the 46-millimeter case fits perfectly on each wrist, where it offers a decidedly elegant profile. The appearance of this timepiece is supplemented by alternately polished and satin-finished surfaces of the case middle part, bezel and internal bezel ring. In addition, the caseback is provided with a sapphire crystal which alows a view of the beautifully decorated movement, corresponding to the aesthetic standard of the brand. So it is provided with round Geneva stripes and blued screws, plate and bridges are perlaged, angled and elongated. The rotor is decorated with an engraved Piaget crest.
Using a text by Piaget