This variant features an open base plate and bridges that allow for a clearer view of the high-frequency 5Hz escapement with lubricant-free silicon escape wheel and pallet lever.
Used e.g. with the model Zenith Chronomaster Open (2022).
- Self-winding movement, bi-directional winding
- Column wheel calibre
- Silicon escape-wheel and lever
- Shock protection Kif-Ultraflex
- From 2022