This is for a bracelet specially fitted for this model Bellmatic (4006-6020 through 6029). It is 22mm wide and tapers to 18mm at the buckle (end-link is 19mm). It is a heavy, solid-link bracelet with brushed metal, security clasp, and a truly awesome fit! It has removable links (with pins) and 3 holes on the buckle for micro-adjustment. Fits up to a large wrist. (Also compatible with the 7A28-7049 Sports Chronograph).