Seiko Prospex Sumo – Professional-Grade Automatic Dive Watches

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Seiko Prospex Sumo – The Ultimate Automatic Dive Watch

The Seiko Prospex Sumo is one of the most recognizable dive watches in Seiko’s legendary Prospex lineup. Known for its bold case design, exceptional durability, and high-performance automatic movement, the Sumo is a favorite among divers and collectors worldwide. First introduced in 2007, the Sumo has evolved over the years while maintaining its signature design, ISO 200m water resistance, and professional dive functionality.

With its curved, ergonomic 45mm case, ultra-legible dial, and rugged construction, the Prospex Sumo is built to withstand the toughest underwater conditions while offering a bold and stylish presence on the wrist. Whether you're an experienced diver or an enthusiast looking for a reliable everyday timepiece, the Sumo delivers power, precision, and timeless Seiko craftsmanship.

Explore the Seiko Prospex Sumo Collection:

Seiko Sumo Automatic – The Dive Legend
Powered by the reliable Caliber 6R35, the automatic Seiko Prospex Sumo offers an impressive 70-hour power reserve, ensuring long-lasting precision with minimal winding. Its ISO 200m water resistance, robust stainless steel case, and unidirectional rotating bezel make it a true tool watch for professional divers and adventure seekers alike.

Seiko Sumo PADI – Official Partner of Professional Diving
The Seiko Prospex Sumo PADI Special Edition celebrates Seiko’s partnership with the Professional Association of Diving Instructors (PADI). Featuring exclusive blue and red colorways inspired by PADI’s official branding, these models deliver superior diving reliability with a bold and distinctive look.

Seiko Sumo Limited Editions – Exclusive & Collectible
Seiko frequently releases limited-edition Sumo models, such as the Save the Ocean series, featuring unique textured dials inspired by marine conservation themes. These rare pieces combine the classic Sumo design with exclusive finishing and upgraded materials, making them highly sought after by collectors.

Why Choose the Seiko Prospex Sumo?

Iconic 45mm case design for bold wrist presence
Caliber 6R35 automatic movement with 70-hour power reserve
ISO-certified 200m water resistance for professional diving
Sapphire crystal with anti-reflective coating for superior durability
LumiBrite-coated hands and markers for exceptional low-light visibility
Unidirectional rotating bezel & screw-down crown for dive safety
PADI Special Edition models with exclusive colors & branding

From deep-sea exploration to everyday adventure, the Seiko Prospex Sumo is a powerhouse in Japanese dive watch engineering. Its combination of robust construction, precise movement, and bold aesthetics makes it one of the most trusted and admired dive watches in the Prospex lineup.

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