this is a very rare 37mm steelcase chronograph from the 1960s by zenith. the condition is almost nos with only very minor signs of storaging. all parts about it are the original ones. the dial appears with it´s, UV light tested, tritium with an outstanding beautiful pumpkin patina. The zenith caliber 146D is running strong and exactly. the chronograph comes on a 60s sporttropic band with it´s original zenith buckle and a box. you won´t find another one in this condition anywhere else.