Seiko Prospex Sumo Ceramic Bezel SPB321

The nickname Sumo was initially not the official name of this Prospex series of watches. Yet somehow the name stuck and is now acknowledged by Seiko itself. The name’s origins could be explained by some theories. The first theory is that of the robust, oversized countenance of the watch together with a thin 20mm bracelet. The second explanation lies in how the 12 o’clock marker looks like a Mawashi, the underwear donned by Japanese sumo wrestlers during a match.

Seiko Prospex Sea King Sumo Blue Dial Automatic Diver's SPB321 SPB321J1 SPB321J 200m Men's Watch

Seiko Prospex Land Mechanical GMT model SPB411. Limited Edition of 4000 pieces. Modern re-interpretation of the first Seiko GMT watch to feature a rotating bezel. Powered by Seiko Caliber 6R54 automatic movement with date and GMT functions. Stainless steel case and bracelet. Smooth rotating bezel with engraved 24 hour scale. Grey dial with LumiBrite filled steel tone hands and markers. Rated 100meters water resistant. Domed sapphire crystal.

Seiko Prospex GMT Limited Edition SPB411

F】 The New Seiko Prospex Sumo Trio Of Dive Watches (2022)

The Seiko Prospex SPB323 diver's watch features an automatic movement within a 45mm stainless steel case with a black ceramic rotating bezel. The gray dial includes a date display and is covered by sapphire crystal. The stainless steel bracelet includes a deployant clasp. Water resistant to 200 meters.

Seiko Luxe SPB323 - Prospex Sumo Gradient Gray

Prospex 200m Sumo Gradient Blue Sapphire 3rd Gen Ref. SBDC175

Prospex King Sumo Blue 'Gradation' Diver, Seiko Boutique

Review - The 2022 Seiko Sumo Prospex Diver 200m SPB321J1 SPB323J1

Seiko SRPA81K1 men's Prospex black dial black urethane strap automatic dive watch is offered in a black solid stainless steel case. This model is made in dimensions of 52mm across and 13mm high. This watch has a one way rotating bezel and a textured screw down main crown. Seiko SRPA81K1 is fitted with a black urethane rubber strap. Securing the strap is a pin buckle clasp made in stainless steel.