Seiko Cal. 5691 - 103

The Seiko 5691-103 represents an important milestone in Seiko's 1980 lineup. Powered by the 5691 caliber with 31j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-9aeca25fbd40]

Also known as: Bullhead, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1980

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