Swiss 18 carat gold and ruby set open faced lever Circa 1928

A Swiss gold and ruby set open faced keyless lever pocket watch, circa 1928. Manual winding nickel lever movement, cut bimetallic compensation balance. Gilt dial, Breguet numerals, outer minute track and subsidiary seconds. 18 Carat gold case, snap on case back, band and bow highlighted with faceted calibrated rubies. Case, dial and movement signed, case and movement numbered. With a Extract from the Archives.
–