22mm SUPER Engineer Type II Solid Stainless Steel Watch Band Deployment Clasp PVD Black Buckle (mm) : 22mm Material : 316L Solid Stainless Steel Buckle type / Finish : 316L Stainless Steel Brushed Deployment Clasp with Push Button Adjustment type : Screw fixed Link + 3 Mirco hole type adjustment 2.5mm Dia. Fat type spring bars included