This traditional model, with its calendar hand, is one of Ons’s grand classics. Created in 1938, but still very contemporary, it is being presented at BASEL 96 in a new guise. Its stainless steel case is water-resistant to 30 in and features a screw-down back and transparent mineral crystal. This watch comes with an automatic movement with centre hour and minute functions, small seconds at 9 o’clock and a reverse date hand. The luminous hour markers and numbers on its black dial offer perfect night-time legibility. Also available in a IOmicron gold-plated version, this watch comes on a leather strap or a solid stainless steel bracelet with a safety clasp.