Seiko Cal. 6677 - 309

The Seiko 6677-309 represents an important milestone in Seiko's 1977 lineup. Powered by the 6677 caliber with 34j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-41af04f597a2]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1977

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