Mechanical Movement / Manual Winding 23 Jewels * Date Calender * Functions: Hours, Minutes, Seconds, Date calendar * Stop watch with summing up action Stop Watch With Summing Up Action * Shock Protection * Power Reserve * Chronograph Running 37hr * Sapphire crystal * Water Resistant 30 Meters * 43mm case diameter, 20mm specially designed strap * This Line Is The Sequel Of Very Successful "Wright Brothers" Models Which Were Dedicated To The Creators Of The First Airplane In The World.