Seiko Cal. 5664 - 991

The Seiko 5664-991 represents an important milestone in Seiko's 1979 lineup. With its 19mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-e22fc0dcfbf4]

Also known as: Pogue, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1979

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