This Super-J Louis JUB watch bracelet with a curved solid end pieces perfectly fit Seiko MM200 Prospex Black SBDC061/SPB077 (Baby Marine Master) and its variants SBDC063/SPB079, etc. New Super-J Louis JUB watch bracelet is more than an upgraded version of vintage watch band. Item number: SS201820B110Brand Name: Super-J Louis JUBLug width (mm): 20Buckle size (mm): 18 Buckle Include: YesBuckle type/Buckle Finish: 316L Stainless Steel Solid V-Clasp Double Lock Buttoned Diver Clasp, BrushedOverall Length (mm): approx. 185Thickness (mm): 3.4Spring bar hole dia. (mm): 2.00Design to fit : Seiko MM200 Prospex Black SBDC061/SPB077 (Baby Marine Master) and its variants SBDC063/SPB079, etcMaterial: 316L Stainless Steel, all solid links include end linksColor/Finish: BrushedMax. length (mm): approx. 185Corresponding Min. length (mm): approx. 110Net Weight (gram): approx. 91Lug end style: Curved EndAdjustment type: 10 Screw fixed links & 6 micro holes on clasp