Silver Centre Seconds English Lever

An early 20^th Century English centre seconds lever in a silver open face case.  Gilt three quarter plate keyless movement with going barrel.  Plain cock with polished steel regulator, compensation balance with blue steel overcoil hairspring.  Club foot lever escapement.  White enamel dial with centre seconds, Roman numerals, blue steel seconds hand, gilt hands.  Substantial plain silver open face case, maker's mark "TPH" in a rectangle, gilt winding button and silver slide in the band to stop the watch.