Seiko 20mm Depolyant Style Croco Calf Watch Strap Item No. : SEI-LE20-243 Size (mm) : 20/18 Material : Calf Color : Black Croco Grain Thickness (mm) : 3.2mm Stitching Color : Match Color Stitching Length (mm) : 120 + 80 Buckle : Include 18mm Seiko Stainless Steel Deployant Buckle/ Clasp