Seiko Cal. 6642 - 788

The Seiko 6642-788 represents an important milestone in Seiko's 1977 lineup. With its 19mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-5cde10420158]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1977

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