Seiko Cal. 5291 - 764

Released in 1976, the Cal. 5291 with design code 764 was part of Seiko's domestic market collection. With its 18mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-52edd1cc22b8]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1976

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