Seiko Cal. 6691 - 356

This Spring Drive model from 1965 features a 44mm Two-Tone case. With its 19mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-f93e3fc157cf]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1965

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