Seiko Cal. 6691 - 476

Released in 1975, the Cal. 6691 with design code 476 was part of Seiko's domestic market collection. With its 19mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-b6cb78ee92c8]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1975

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