Abstract: A bracelet or wrist watch clasp which is completely hidden when closed. Studs having enlarged heads project from a central body which engages the wrist. Side legs are hinged to each end of a central body to swing to a closed position on the body. Each let has an annular radially elastic element retained in the thickness of its wall and positioned to receive and latch on a stud as the legs are swung to the closed position. Ends of the bracelet or watch band are connected to the free ends of the legs.