Seiko Cal. 5691 - 897

The Seiko 5691-897 represents an important milestone in Seiko's 1970 lineup. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-c8e39008c855]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1970

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