Seiko Cal. 6687 - 855

The Seiko 6687-855 represents an important milestone in Seiko's 1971 lineup. With its 21mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-108ff9909040]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

17j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1971

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