Ingenieur 866 A

Second-generation time-only Ingenieur, from 1967: 37 mm case, 120 m in steel (60 m in gold), new dial and case details and calibreCaliberThe designation of a watch movement, identifying its design or movement family. 854B. Renumbered 1908 in IWC’s 1971/72 system. Dials in black, blue, silver or giltGilt dialIn classic vintage Rolex usage, a dial whose gold-coloured text or markings reveal the metal beneath the dark surface coating. Gold-coloured printing alone does not establish this construction. brushed finishes.