HSTE[Omega Moderator]
4572
Hot day, cold steel. Four generations of IWC Ingenieur, all steel, steel bracelet and black dial.
Left to right:
- ref. 666 AD (1958), produced from 1953 to 1958
- ref. 866 AD (1971), produced from 1967 to 1976; this is a rare military dial version
- ref. 1832 (1983), produced from 1976/77 to 1984 in only 534 pieces
- ref. 3508 (1990), produced from 1989 to 1992. Only 2104 pieces of the steel „500.000 A/m“ version.
Cheers, HSTE