Seiko Cal. 6691 - 276

This Spring Drive model from 1981 features a 37mm Two-Tone case. With its 18mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-e6aa889ffef5]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1981

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