Seiko Cal. 5681 - 650

The Seiko 5681-650 represents an important milestone in Seiko's 1968 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-88fd86ea0284]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1968

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