Seiko Cal. 6631 - 779

The Seiko 6631-779 represents an important milestone in Seiko's 1986 lineup. With its 21mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-47899fb28592]

Also known as: Crown, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1986

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