Strap ZRC 519 Crocodile grained calf leather with nubuck or bio-comfort back as supplied. tapered 2mm towards the buckle. 19mm and 20 regular non OE black are currently a 549 not a 519, this has a matt finish full calf leather lined back, not the bio-confort, with a lightly pressed Alligator grain pattern and one of the 20OE Black is a 509 which has smaller plates.
LENGTHS OF LEATHER 115X80
LENGTHS OF LEATHER OPEN ENDED 110X80 VERY APPROX