Seiko Cal. 0771 - 631

The Seiko 0771-631 represents an important milestone in Seiko's 1990 lineup. With its 19mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-f98172029b19]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1990

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