Seiko Cal. 5677 - 309

The Seiko 5677-309 represents an important milestone in Seiko's 1974 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-e9e61a54c92a]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1974

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