Seiko Cal. 6651 - 509

The Seiko 6651-509 represents an important milestone in Seiko's 1968 lineup. Powered by the 6651 caliber with 34j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-649f4a7d2f40]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1968

Related Models

• Seiko 5677-415
• Seiko 4469-146
• Seiko 4436-252
• Seiko 5268-640
• Seiko 7073-560
• Seiko 0760-503
• Seiko 7136-106
• Seiko 5237-970
• Seiko 6330-648
• Seiko 6390-282
• Seiko 5674-143
• Seiko 6127-637