Material: Canvas (Upper Layer) / Calf Leather (Lower Layer)

Color: Black

Lug width: 21mm

Buckle size: 18mm

Overall Length: 135mm + 55mm

Thickness: 2-4mm

Buckle Include: Yes

Buckle type: Stainless Steel Depolyant Clasp (Can also fit 18mm original depolyant clasp)

Design to fit: IWC and all watches with 21mm lug width