Crafted from high-performance fluoroelastomer — a material originally developed for the automotive industry to withstand extreme heat and chemicals — this strap offers exceptional durability, comfort, and resistance to sweat or discoloration. Compatible with all Crown Edition Apple Watch cases, it brings a sporty, versatile edge to your timepiece. Pair it with the Crown Classic or Crown Classic Sport for a relaxed, athletic style, or with the Crown Sport for a streamlined, performance-driven look. The strap is secured with a butterfly buckle in 316L stainless steel, available in polished silver or PVD-plated 18K gold and rose gold to match your case perfectly. COMPATIBILITY All Golden Concept Crown Edition Apple Watch Cases (Crown Sport, Crown Classic, Crown Classic Sport). STRAP MATERIAL Fluoroelastomer strap with buckle in 316L Stainless Steel. STRAP SIZE Fits wrists from 150 - 200 mm