12-24 MM Width Classic Double Calfskin Leather Padded Replacement Watch Band with Install Tool & Spring Bars Material:Genuine calf leather; Buckle:Stainless steel. The real leather product is not waterproof,please do not let the bands into the water. Specific size, please refer to the dimension table on the left. The strap is standard style, can fit most watches, can fit Breitling, Breguet, Cartier, Casio, Citizen, Longines, Nomos, Omega, Tissot and other watches. Package include:1x Wristband,1x spring bar tool,4x spring bars(The watch is not included!).