Seiko Cal. 0766 - 431

The Seiko 0766-431 represents an important milestone in Seiko's 1978 lineup. With its 19mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-eee7b80500bf]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1978

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