IWC Ingenieur Double Chronograph Titanium: With its split-seconds function, this 45-mm Ingenieur reflects the technical spirit of the collection. The 79420 caliber is based on the Valjoux 7750, years ago, IWC (specifically, Austrian movement developer Richard Habring, who worked there at the time) added the split-seconds mechanism to it and transformed it more or less to an in-house caliber.

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