Seiko Cal. 4456 - 322

This Spring Drive model from 1967 features a 44mm Hardlex-Coated Steel case. With its 18mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-1e1974e8fe69]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1967

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