Ingenieur SL Automatic 3505

The 34 × 8.8 mm “Skinny” Ingenieur SL AutomaticAutomaticA mechanical movement wound by a rotor as the watch moves on the wrist. with an ETA 2892-based IWC calibreCaliberThe designation of a watch movement, identifying its design or movement family. 375. Lower antimagnetic rating than the 1832, slightly revised indices and hands, and the debut of the graph-paper dial on the slim case. Commercially more successful than the Jumbo.