Item Name : Seiko replacement watch strap, black strap watch, leather watch strap Size (mm) : 22/18 Material : Calf Color : Black Croco Grain Thickness (mm) : 4.0mm Stitching Color : Match Color Stitching Length (mm) : 120 + 80 Buckle : Include Seiko 18mm Stainless Steel Deployment Buckle/ Clasp