IWC - International Watch Co.

European Watch Clock and Jewellery Fair 1987 BF 216
Called “Automatic Perpetuel” this International Watch Co. squareshaped self-winding watch features a perpetual calendar programmed for the coming centuries, displaying the date, the day, the month, the year and even the decade, with an unusually precise moon phase indicator. All the functions are controlled by the crown, but the distinction between 30 and 31 day months and leap years are directly programmed in the mechanism. Solid gold case, water-resistant to 30 m, sapphire crystal. This model is also available in platinum. (IWC - International Watch Co.)