Thomas Earnshaw Men's 'Armagh' Automatic Stainless Steel and Leather Dress Watch, Color:Green (Model: ES-8037-07) The self winding automatic Armagh is a fine example of an exposed flywheel which evocative of large scale windows open to observe the skies Automatic Skeleton Movement Automatic-self-wind Movement Case Diameter: 42mm Water resistant to 50m (165ft:in general, suitable for short periods of recreational swimming, but not diving or snorkeling