Seiko Cal. 5686 - 777

The Seiko 5686-777 represents an important milestone in Seiko's 1970 lineup. Powered by the 5686 caliber with 20j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-395f6a6946fe]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1970

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