Seiko Cal. 6687 - 170

Released in 1978, the Cal. 6687 with design code 170 was part of Seiko's domestic market collection. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-7cf0341114fa]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1978

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