ROCHET blends the best of materials with its new HYBRID strap, the perfect union of synthetic and natural. A core of NBR rubber-both flexible and ultra-resistant-wrapped in elegant full-grain leather. With this strap, your watch knows no boundaries and supports you across all terrains, from urban streets to the most extreme environments. Length: 120/80mm. Buckle: Steel 316L, satin brushed & glossy.