Jaeger-LeCoultre Silver Automatic Self Winding Watch # 1378420 (Men Watch). Band Color : Black. Dial Color : Silver. Band Material : Leather. Case Size Thickness : 10 millimetres. BandLength : Men Standard. Case Size Diameter : 39 millimetres. Case Material : Stainless Steel. Clasp Type : Deployment. Bezel Function : Fixed Stainless Steel. Crystal : Scratch Resistant Sapphire. Water Resistant Depth : 50 meters. Movement Type : Automatic Self Winding. Model Number:1378420 137842 13784 1378.