Seiko Cal. 6320 - 766

The Seiko 6320-766 represents an important milestone in Seiko's 1979 lineup. With its 19mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-635ec9671c65]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1979

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