On model Theck Ann, the Ingenieur Perpetual Calendar Digital Date-Month is the flagship of the new Ingenieur collection.
Production is limited to 100 watches:
– 18-carat red gold, silver-plated dial, black hands, black alligator leather
strap, S$70,100 (Ref. IW381701)
The digital perpetual calendar displays the date and the month in large numerals. It automatically recognizes the different lengths of the months, including the leap day occurring every four years, plus it is also extremely easy to adjust using the crown. The IWC-manufactured 89801 calibre also features a chrono- graph function
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