Seiko Cal. 4451 - 366

This Spring Drive model from 1974 features a 38mm Hardlex-Coated Steel case. With its 18mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-e4c5df068f1f]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1974

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