Seiko Cal. 6651 - 729

The Seiko 6651-729 represents an important milestone in Seiko's 1972 lineup. Powered by the 6651 caliber with 29j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-1e1169dbc70c]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1972

Related Models

• Seiko 4421-729
• Seiko 6237-234
• Seiko 6390-615
• Seiko 7078-838
• Seiko 5678-531
• Seiko 7117-783
• Seiko 6257-193
• Seiko 6296-403
• Seiko 6291-814
• Seiko 3860-279
• Seiko 4434-333
• Seiko 6225-527