Jaeger-LeCoultre Black Automatic Self Winding Watch # 207857J (Men Watch). Band Color : Black. Dial Color : Black. Band Material : Leather. BandLength : Men Standard. Case Size Diameter : 40.5 millimetres. Case Material : Stainless Steel. Clasp Type : Tang Buckle. Bezel Function : Fixed Stainless Steel. Crystal : Scratch Resistant Sapphire. Water Resistant Depth : 100 meters. Movement Type : Automatic Self Winding. Model Number:207857J 207857 20785 2078.