A late 19th Century Swiss Pallweber patent lever by IWC with digital dial in a silver open face case. Keyless gilt split three quarter plate movement with going barrel. Marked “PATENT PALLWEBER” under the centre wheel. Plain cock with polished steel regulator, compensation balance with blue steel spiral hairspring. Club foot lever escapement. Signed white enamel dial marked in Spanish, “Horas – Minutos”. Central aperture revealing the digital indication of minutes displayed by two silvered discs. A circular aperture above showing the hours on a third silvered disc. Below these a small subsidiary seconds dial. When the seconds hand passes 60 the minute changes instantaneously changing the ten minute marked and hour when appropriate. Silver open face case, the back decoratively engraved and bearing a vacant shield shaped cartouche. Plain silver cuvette and winding button.