Alpina presents the Seastrong Diver 300 Chronograph Big Date. The aluminum, unidirectional, turning bezel, turns in just one direction: anti-clockwise. The stainless cushion shaped steel case, the screw-in crown and case-back, the scratch-resistant sapphire crystal, the robust, water-resistant, genuine leather strap and the beautiful engraving of the Alpina diving symbol. The range comes in 4 different models, each with a different bezel colour: bordeaux, grey, navy blue and orange.