The carriage clock movement has screwed posts, is wound and set off the back plate and retains the original balance platform with a cylinder escapement and steel one piece balance wheel. All the motion, lunar and calendar work runs off the front plate and is partially visible through the glazed dial centers.
The lunar feature is geared directly into the movement so the moon continually rotates while the day, date and month are automatically tripped as needed. The perpetual feature is governed by a set of small steel springs and levers mounted to the center calendar wheel that adjust to trip all the calendar features accordingly. The year is changed manually by pulling the knob on the back which advances the year and leap year indicator hand by one. Leap day is indicated by pushing the lever on the side every 4 years which trips the calendar hand backwards by one thus giving another day in February.
Strasbourg Cathedral has housed a series of complicated clocks since the 14th century with the third and final one completed in 1843. There were several models produced with the most famous housed in the Powerhouse museum in Australia. This example is not an exact copy, but was undoubtedly inspired by the Strasbourg cathedral and its wonderful clock. Time Dial diameter: 2 3/8 in.1850 Rare French Multi-Dial Perpetual Calendar Mantle Clock" is in sale since Thursday, October 11, 2018. This item is in the category "Antiques\Decorative Arts\Clocks". The seller is "sundialfarmantiqueclocks" and is located in Greenlawn, New York. This item can be shipped worldwide.