Cal. F385 is a high-beat flyback chronograph movement produced by Blancpain Manufacture (formerly Frédéric Piguet). The free-spring Glucydur balance operates at 5 Hz (36,000 A/h) with a silicon balance spring. The chronograph features a column wheel and vertical clutch with flyback function.
Blancpain Manufacture designed this movement from scratch, though the designers took inspiration from the preceding Cal. F185. The movement was introduced in 2014.
- Blancpain Bathyscaphe Chronographe Flyback, Ref. 5200
- Blancpain Chronographe Flyback Pulsomètre, Ref. 6680 (no small seconds)