Seiko Cal. 5686 - 669

The Seiko 5686-669 represents an important milestone in Seiko's 1968 lineup. Powered by the 5686 caliber with 22j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-9c858d622f1c]

Also known as: Tuna, Helmet

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1968

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