Seiko Cal. 6677 - 691

The Seiko 6677-691 represents an important milestone in Seiko's 1977 lineup. Powered by the 6677 caliber with 19j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-36a7127f1854]

Also known as: Tuna, Crown

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1977

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