Model:1909A Movement:7H50 Drive: Single spring Winding method:Automatic winding Power reserve:80 (hours) Vibration frequency:28800 (times/hour) Case diameter:49.5x43mm Case thickness:14mm Strap width:20-25.5mm Case Material:316L Stainless Steel Strap Material: Rubber Waterproof:50m Crystal Material: Synthetic Crystal Back Cover: Synthetic Sapphire Crown: Straight in
