One of Seikos nicknamed models, the Sumo has a traditional look compared to many of the Japanese brands often quirky dive watches.Suberbly constructed with small details like its handset and bezel markings, as well as in more substantial ways, such...

Seiko Prospex introduces its first solar watch with a GMT hand, powered by the in-house built new calibre of 5K62. The watch shape is affectionately named 'Sumo' by Seiko fans because of its size and shape and the 12 o'clock...

Seiko Prospex introduces its first solar watch with a GMT hand, powered by the in-house built new calibre of 5K62. The watch shape is affectionately named 'Sumo' by Seiko fans because of its size and shape and the 12 o'clock...

One of Seikos nicknamed models, the Sumo has a traditional look compared to many of the Japanese brands often quirky dive watches.Suberbly constructed with small details like its handset and bezel markings, as well as in more substantial ways, such...

This latest design has been upgraded with new modern features, including a ceramic bezel and super hard coating on the case and bracelet for durability. A new 3 row bracelet has been specifically made for this model, while the clasp...

This latest design has been upgraded with new modern features, including a ceramic bezel and super hard coating on the case and bracelet for durability. This watch features a silicone strap, while the dial features a fine pressed pattern dial.The...

This latest design has been updated with new modern features, including a ceramic bezel and super hard coating on the case and bracelet for durability. A new 3 row bracelet has been specifically made for this model, while the clasp...

Sumo, Solar Powered Chronograph DiversAffectionately named Sumo by Seiko fans - because of its size and shape and the 12 oclock marker its a substantially strong looking timepiece. Solar-powered, the watch charges from natural and artificial light.. Blue dial and...