Zenith caliber 9100
9100 description
Self-winding movement beating at 129,600 vibrations per hour (18Hz) through a one-piece oscillator that replaces the 30 or so components of a standard regulating organ.
Self-winding movement beating at 129,600 vibrations per hour (18Hz) through a one-piece oscillator that replaces the 30 or so components of a standard regulating organ.