Seiko Cal. 6656 - 523

This Spring Drive model from 1987 features a 45mm PVD Black case. With its 20mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-d12d2584efc6]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1987

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