Seiko Cal. 6686 - 691

The Seiko 6686-691 represents an important milestone in Seiko's 1982 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-ba8ca4775aea]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1982

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