A development of the 500P, the 551P is a automatic movement distinguished by the addition of two small complications: an off-centered small seconds at 10 o'clock, a Piaget signature feature and a power-reserve indicator at 6 o'clock. It is also fitted with a balance stop. The circular Côtes de Genève, circular-grained mainplate, beveled bridges and blued screws adding the finishing touches to this movement are reminders of the Swiss watchmaking brand's high esthetic values.
Shape: Truncated round
Functions: Power reserve indicator at 6 o'clock, Small seconds at 10 o'clock, Hours, Minutes
Power reserve (in hours): Approx. 42
Frequency (vph): 21,600
Frequency (Hz): 3
Diameter (lines): 9.00
Diameter (mm): 20.5
Number of jewels: 27
Thickness (mm): 4.9
Number of components: 225
Finishing: Beveled bridges, Circular-grained mainplate, Blued screws, Circular Côtes de Genève
*Piaget luxury watches and jewelry are individually produced and thus the weight and carats of each product can vary from the displayed data.