20mm Super-O Boyer Watch Bracelet for SEI Mid-size Diver SKX023, Wetsuit Ratchet Buckle, BrushedRatchet Buckle Clasp is an ideal Wetsuit watch band buckle. The ratchet theory extension mechanism is of great importance for both convenience and safety. Super-O Boyer watch bracelet is composed by 3 flat and solid 316L stainless steel units and a curved solid end piece perfectly fit SEI Diver Mid-size SKX023X. Screw-in adjustable details instead of flimsy pins to keep its solidity and stability. This item includes one pair of FAT spring bar (eg. generic SEI Dia. 2.5mm spring bar) to ensure a more secure connection. Tapered 22mm lug into 20mm buckle size. This Super-O Boyer watch bracelet is a good choice of SEI replacement watch band for your SKX023 models.Item number: SS201817B037Brand Name: Super-O BoyerLug width: 20mmBuckle size: 18mmBuckle Include: YesBuckle type / Buckle Finish: 20mm 316L Stainless Steel button control Diver Wetsuit Ratchet Buckle, Brushed Overall Length: 180mmThickness: 3.4mmSpring bar hole dia.: 1.78mm (included)Design to fit : SEI Diver SKX023 replacement watch bandMaterial: 316L Stainless Steel, SolidColor / Finish: BrushedAll Available Max. length: 190mmCorresponding Min. length : 110mmNet Weight : 104gLug end style: Curved EndAdjustment type: Screw fixed Links + Ratchet adjust 10mmRemarks: CLASP18-017B