B084M24PNY 21mm Pilot Style Black Nylon Watch Strap For IWC, Semi Square Tail

Material: Nylon(Upper Layer) / Calf Leather(Lower Layer) Color: Black Lug width: 21mm Buckle size: 18mm Buckle Include: Yes / No Buckle type: Stainless Steel Depolyant Clasp (Can also fit 18mm original depolyant clasp) Overall Length: 130mm + 55mm Thickness: 3-5mm Design to fit: IWC and all watches with 21mm lug width