Seiko Cal. 6687 - 971

The Seiko 6687-971 represents an important milestone in Seiko's 1978 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-649d5cc64614]

Also known as: Samurai, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1978

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