|A late 19th Century Swiss lever with unusual automatic 24 hour dial in a silver open face case. Keyless gilt split three quarter plate movement with going barrel. Plain cock with polished steel regulator, uncut balance with spiral hairspring. Club foot lever escapement. Unusual dial, signed gilt mask with
twelve circular apertures and seconds subsidiary, blue steel hands. The apertures in the mask either show Arabic numerals from one to twelve or thirteen to twenty four, the indication changing automatically around midnight and noon. Engine turned silver open face case, vacant shield shaped cartouche on the back. Silver cuvette engraved with medals and "Ancre de Precision".