Seiko Cal. 6647 - 764

The Seiko 6647-764 represents an important milestone in Seiko's 1966 lineup. It features a Black dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-293ba9bb3de6]

Also known as: Shogun

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1966

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