Seiko Cal. 6664 - 742

The Seiko 6664-742 represents an important milestone in Seiko's 1966 lineup. With its 18mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-d5a919a0c7e9]

Also known as: Bullhead, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1966

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