Seiko Cal. 6658 - 720

This Spring Drive model from 1970 features a 34mm Gold-Plated case. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-3902b91c250b]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1970

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