Seiko Cal. 0777 - 531

The Seiko 0777-531 represents an important milestone in Seiko's 1980 lineup. With its 20mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-c33a6410a80f]

Also known as: Helmet, Flighty

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

41mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1980

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