A rare Swiss walnut bow-fronted wall regulator, Zenith No.55, circa 1920

7½-inch printed dial with outer minute ring enclosing subsidiary seconds and hours dials, signed and numbered Zenith, No. 55, the weight-driven movement with high count train, maintaining power, dead beat escapement with jewelled pallets, the separately suspended pendulum with cylindrical bob, knurled rating nut and roller suspension, in a plain glazed bow-fronted case,

135cm. 53¾in. high