Seiko SPB103J1 Prospex Automatic Watch

The Seiko Prospex Diver 200m SBDC031 was launched in 2007, as a mid-range offer, above the entry-level Turtle and Samurai and below the MarineMaster 300m. A better movement than the two affordable pieces on one side, a case with more attention to details too, but a lower water-resistance and no sapphire crystal like the MM300. This watch was typical of Seiko’s Divers, with a large and hefty 45mm x 13.5mm case, a crown positioned at 4 o’clock and large markers on the dial. It didn’t evolve from 2007 to 2018 and was powered by the well-known automatic calibre 6R15. But at Baselworld 2019, a new version has been introduced.