Seiko Cal. 0771 - 434

The Seiko 0771-434 represents an important milestone in Seiko's 1965 lineup. With its 21mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-85a6dd9efe5b]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1965

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