This family of Parmigiani Fleurier movements features two mainspring barrels in series for longer power reserve, 28,800 A/h operation, and a central winding rotor. Cal. PF310 is a simple and compact movement with small seconds and date, while others add modules on (and around) this base for added complications.
- Cal. PF310 – Tonda Metropolitaine
- Cal. PF315 – Chronograph module for Tonda Metrographe
- Cal. PF317 – Dual timezone module for Toric Hemispheres Retrograde
- Cal. PF318 – Moon phase module for Tonda Metropolitaine Selene