Seiko Cal. 6687 - 855

The Seiko 6687-855 represents an important milestone in Seiko's 1966 lineup. With its 20mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-36a261b542d1]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1966

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