Seiko Cal. 6649 - 657

The Seiko 6649-657 represents an important milestone in Seiko's 1973 lineup. With its 19mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-30cbecd3be13]

Also known as: Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1973

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