Seiko Cal. 6656 - 864

This Spring Drive model from 1966 features a 40mm Stainless Steel case. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-9bc865b24a4a]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1966

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