Seiko Cal. 6331 - 419

The Seiko 6331-419 represents an important milestone in Seiko's 1976 lineup. With its 18mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-b7ec7deabc1f]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1976

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