Model:1978 Movement:82S7 Drive: Single spring Winding method: Automatic winding Power reserve:40 (hours) Vibration frequency:21600 (times/hour) Case diameter:43-49.5mm Case thickness:14mm Strap width:20-26mm Mirror material: Sapphire Case Material: Carbon fiber and Stainless Steel Strap material: Rubber Water resistance:50 meters Crown: Straight in
