Seiko Cal. 4456 - 688

This Spring Drive model from 1972 features a 37mm Hardlex-Coated Steel case. With its 21mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-6060acb4a65d]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1972

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