This strap and buckle combination is almost impossible to find. 100% authentic Breitling strap, special ordered directly from a Breitling AD for this yellow dial SuperOcean 44 but was traded in before it had a chance to be worn. Strap: Strap Reference: 521X Colors: Anthracite top, yellow bottom Lug-Width: 22mm Strap Length: 120mm / 75mm