Seiko Cal. 6641 - 667

This Automatic model from 1987 features a 43mm Stainless Steel case. Powered by the 6641 caliber with 27j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-97a85d8fa576]

Also known as: Shogun, Sea Horse

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1987

Related Models

• Seiko 5670-287
• Seiko 5224-834
• Seiko 6664-535
• Seiko 7123-523
• Seiko 6278-181
• Seiko 6321-257
• Seiko 6247-552
• Seiko 4417-416
• Seiko 7092-673
• Seiko 7189-980
• Seiko 6230-673
• Seiko 5621-490