Dimensions are identical, with a 45mm diameter, 52.5mm lug-to-lug and approximately 13.5mm in height. The steel case still retains its sharp angles and polished facets and still has its screw-down crown positioned at 4 o’clock (Seiko’s hallmark). Regarding the case, the Seiko Sumo Prospex Diver 200m SPB103J1 (or SPB101J1, as two colours will be available) sticks to its large, typical Seiko shape. All in all, the fundamentals are still present but the technical side has been improved, for a better owner experience. Consider this new version as an update, with multiple improvements and slight visual evolutions, rather than an entirely new watch. The new Seiko Sumo – or Prospex Diver 200m SPB103J1 – isn’t a complete departure from the older model and keeps most of the attributes found on the SBDC031.
#Seiko model number update
The new SPB103J1, a technical and visual update But at Baselworld 2019, a new version has been introduced. It didn’t evolve from 2007 to 2018 and was powered by the well-known automatic calibre 6R15.
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. Another possible explanation comes from the marker at 12 o’clock, which resembles the ‘Mawashi’, the underwear worn by Japanese sumo wrestlers during a fight. The first is its relatively bulky case compared to its 20mm bracelet.
According to FratelloWatches and, there are a couple of theories explaining the origin of this name. The SBDC031 – the classic model with different dials – quickly gained a nickname: Sumo. The Seiko “Sumo” Diver 200m SBDC031, as is was between 2007 until 2018. 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. 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.
0 kommentar(er)
