Seiko Cal. 6687 - 697

The Seiko 6687-697 represents an important milestone in Seiko's 1973 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-0809cda2c0d3]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1973

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