Tag: Ingenieur SL Perpetual Calendar (3540)
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Owner Review: IWC Ingenieur Perpetual Calendar 3540
The Kurt Klaus perpetual calendar movement which lies at the heart of the IWC Ingenieur Perpetual Calendar was engineered to be easy to set and manufacture. Through a twist of the crown, and the date, day of the week, month, moon phase, year, and century advance forward. Each day that passes across the face of
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Comments
That dial is just fntastic.







Very cool watch. I have always wondered about the bronze models. Is the caseback bronze as well? If so do…