pf777Calibre: PF777. Winding: Automatic. Total dimensions: 13 ¼''' - Ø 30.0 MM. Thickness: 3.9. Frequency: 4 HZ - 28’800 AH. Power Reserve: 60 hours. NB of components: 192. NB ofPF777 WINDING Your watch automatically self-winds when you wear it. To become fully wound, it must be worn for at least 12 hours. This may vary depending on the type of user. If the watch