Picture: Seiko The Seiko Prospex SPB143 is a novel alternate on the Submariner, as, though it may appear to be loosely modeled once the Sub, the SPB143 is, actually, a modernized reissue in the Japanese watch brand name’s 62MAS model from 1965, which not merely marked Seiko’s first dive watch, https://swissclone.com/wp-content/uploads/2023/03/image00575-1.jpeg