In the meantime, the secular calendar module is pushed starting with the 48-month wheel, which makes use of two fingers to actuate a yr wheel with 50 enamel. The yr wheel thus strikes by two enamel each 4 years, finishing one revolution per century.
The yr cam then controls the journey of « A » within the illustration, a limiter beak that limits the sliding distance of the peripheral rotor to a worth that corresponds to a 29-day month. When in an inactive place, the limiter beak retreats in order to not intrude with the sliding of the peripheral rotor. Within the illustration, the beak is in an energetic place for a bissextile year; as soon as it is handed, it’s going to transfer again down and stay inactive for the next three Februarys.