Seiko Prospex Mechanical Automatic 200M Diver 3rd Generation Black-Dial Sumo SPB101

Seiko Prospex Mechanical Automatic Diver's 200M Black-Dial Sumo 
(3rd Generation)

SPB101
(JDM Version Model: SBDC083)

Seiko Prospex Sumo SPB101 (SBDC083) – 3rd Generation Black Dial Diver

The Seiko Prospex Sumo SPB101 represents the bold spirit of Seiko’s professional diver heritage. Nicknamed the “Sumo” for its powerful case silhouette, this 3rd generation model elevates the series with refined upgrades and modern performance, making it a must‑have for collectors and enthusiasts alike.

• The Sumo nickname reflects its bold, iconic case design beloved by Seiko fans worldwide.

• The 3rd-generation upgrade introduces the 6R35 movement, extending the power reserve and enhancing reliability.

• A perfect blend of tool watch toughness and refined aesthetics, equally at home in the ocean or on the wrist of a collector.

Own the Seiko Prospex Sumo SPB101 today — a modern classic that embodies Seiko’s unmatched dive watch legacy. 

SPB101 Specification:

Movement
Caliber: 6R35
Automatic with manual winding capacity
Accuracy +25 to -15 seconds per day
Duration: Approx. 70hrs
Antimagnetic
Jewel: 24

Exterior
Case Material: Stainless steel
Case Size: Diameter 45mm, Thickness 12.9mm
Crystal: Sapphire crystal
LumiBrite: Lumibrite on hands, indexes, and bezel
Clasp: Three-fold clasp with secure lock, push button release with extender

Other Details
Water Resistance 200m
Screw case back
Screw-down crown
Unidirectional rotating bezel
Date display
Stop-seconds hand function

* Kindly note that the displayed image is either a graphic representation or a prototype and may not reflect the final product precisely. Color variations may occur due to differences in browsers, display settings, or devices used for viewing. Additionally, the orientation of the case back in the actual product may differ from what is shown in the photograph.