Seiko Cal. 6656 - 512

The Seiko 6656-512 represents an important milestone in Seiko's 1966 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-1ef8d7f930a2]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1966

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