Photo: Seiko The Seiko Prospex SPB143 is a unique different for the Submariner, as, although it may look like loosely modeled after the Sub, the SPB143 is, in truth, a modernized reissue on the Japanese watch brand name’s 62MAS product from 1965, which don't just marked Seiko’s initial dive watch, https://swissclone.com/wp-content/uploads/2023/03/image00195.jpeg