Seiko Cal. 6664 - 431

The Seiko 6664-431 represents an important milestone in Seiko's 1965 lineup. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-3f103f6ee067]

Also known as: Emperor

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1965

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