Seiko Cal. 6651 - 778

The Seiko 6651-778 represents an important milestone in Seiko's 1982 lineup. Powered by the 6651 caliber with 19j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-acfaf752fbb0]

Also known as: Tuna, Flighty

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1982

Related Models

• Seiko 7169-854
• Seiko 6114-573
• Seiko 6617-172
• Seiko 7045-587
• Seiko 7050-695
• Seiko 6395-840
• Seiko 5670-421
• Seiko 7150-386
• Seiko 7130-528
• Seiko 5687-835
• Seiko 6695-749
• Seiko 6369-546