Seiko Cal. 6687 - 958

The Seiko 6687-958 represents an important milestone in Seiko's 1971 lineup. Powered by the 6687 caliber with 20j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-b43a5211eae0]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1971

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