22 mm deployment clasp , fit for PANERAI . 22mm at the buckle .Width at Buckle: 22mm . Made of the highest quality 316L Swiss stainless steel . double lock release . It will fit Panerai 44mm watch . Clasp Width: 22mm. Deployment buckle will work up to 2.5mm thick strap and fits a 24mm strap at the lugs which tapers to 22mm at the buckle or fit 22mm straps at lugs and 22mm at the buckle.