I was never a fan of the Seiko SKX. Nowadays, though, you are better off buying a Seiko Sumo than an SKX. Whether you were a modder or simply wanted to add one to your collection, the world’s available supply of Seiko SKX models shrank rapidly. The Seiko Sumo is a bargainThat brings us to the premise of this article. If you then consider the steep prices of the SKX007 and SKX009, suddenly, the Seiko Sumo becomes a pretty solid option.