Dimensions
Height: 14" (360mm)
Width:  11.5" (29mm)
Depth:  10.75" (275mm)

Background Information
A favourite by clock collectors, the Rolling Ball Clock was invented by the English scientist Sir William Congreve and patented in 1808. The concept of the clock reflects the aspiration of clockmakers to find an alternative to the pendulum as the escapement regulator.

Finish
Regulation is achieved by the traverse of a ball along the zig zag grooves on an inclined plane. The ball trips the escapement at the end of each traverse reversing the slope of the platform. The principle of the clock is such that the accuracy of the timekeeping is limited to +1/-3 minutes per day. This is not a reflection of the quality of manufacture but the fact that the temperature changes, dust on the track and even static electricity give rise to variations.

Dial
Siliver Plated, the orginal three dial version showing the hours, minutes and seconds seperately.

Fittings
The 8 day fusee-driven, gold plated and protected by a class cover.

Close Window