A Hamilton model 23 open faced keyless lever chronograph deck watch, Hamilton Watch Co., U.S.A., circa 1944, black enamel dial signed Hamilton, Arabic numerals, subsidiary seconds, thirty minute register, nickel finished movement adjusted to temperature and six positions, white metal balance and hairspring with overcoil, screw back inscribed AN5742-1, Fssc no.-88-W-590, Mfr's part no. 37297, Hamilton watch Co., with Hamilton wooden deck box 50 mm diameter