18k yellow gold case with original shaped lugs. Mechanical movement with manual winding, the 434 drives the two subdials at 3 and 9 o'clock, which include a 30-minute counter, a seconds counter, a "chemin de fer" minute counter with seconds increments, and a thermal scale. The dial appears restored and aged in color, as it was produced in limited numbers between 1941 and 1948. Ref. 4178, serial n. 267998.
Case diameter 35 mm. Gross weight 44.5 g.
Item condition grading: ***** excellent, currently running, small signs due to time.