Seiko Cal. 6651 - 739

The Seiko 6651-739 represents an important milestone in Seiko's 1986 lineup. Powered by the 6651 caliber with 21j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-a82602730819]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1986

Related Models

• Seiko 5636-947
• Seiko 3870-994
• Seiko 6121-335
• Seiko 7178-770
• Seiko 6375-341
• Seiko 6615-589
• Seiko 6269-746
• Seiko 0774-153
• Seiko 6176-954
• Seiko 6289-854
• Seiko 7091-166
• Seiko 6215-793