Seiko Cal. 5691 - 561

This Automatic model from 1977 features a 35mm Stainless Steel case. Powered by the 5691 caliber with 35j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-c476f0c9913d]

Also known as: Helmet, Flighty

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1977

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