Seiko Cal. 6647 - 859

The Seiko 6647-859 represents an important milestone in Seiko's 1968 lineup. With its 19mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-0c290ec37fe3]

Also known as: Tuna, Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1968

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