This Seiko SBDC003, also known as the 'Blumo', is a cult classic dive watch celebrated for its clean design and direct lineage to Seiko's historic professional divers. Made in Japan, it features an in-house automatic movement and 200m water resistance.

• Condition: Okay / honest used condition with scratches on case, bracelet, and crystal
• Movement: Seiko 6R15
• Water Resistance: 200m water resistance
• Case Size: 44mm diameter

A beautifully aged Japanese Domestic Market (JDM) dive watch with genuine tool-watch heritage, the first-generation "Blumo" Seiko blue-dial Sumo that helped define Seiko's modern dive line.

• Condition: Worn and battle-tested condition with normal signs of wear
• Case diameter: ~44.7 mm
• Case thickness: ~13.3 mm
• Lug-to-lug: ~52.2 mm

A 17-year-old Seiko Sumo with a sapphire crystal and extra links, sold by its second owner. The watch is in very good condition considering its age.

• Condition: Very good
• Age: 17 years old
• Year Bought: 2008
• Year Owned: 3 years (second owner)

A 17-year-old Seiko SBDC003 blue Sumo, made in June 2008, with a sapphire crystal and extra links. The watch is in very good condition and keeps time well.

• Condition: Very good with minor damage to bezel
• Age: 17 years old
• Movement: 6r15
• Crystal Type: sapphire

A Gen 1 Seiko Sumo SBDC003 'Blumo' with a serial date of June 2013, running well and in good condition.

• Condition: nice used condition
• Case condition: has some use but nothing major
• Bracelet size: 7.25"
• Extra links: 1

This Seiko Prospex SBDC003 First Gen Blue Sumo Blumo Divers Automatic Watch features a 45mm case diameter, 20mm lug width, and 52mm lug-to-lug measurement. The watch is powered by the 6R15 mechanical automatic movement.

• Condition: Used
• Movement Type: Mechanical (Automatic)
• Case Diameter: 45mm
• Lug Width: 20mm

This is a discontinued Seiko Sumo model SBDC003, which comes with both the Crafter Blue strap and factory bracelet.

• Strap: Crafter Blue
• Bracelet: factory