Seiko Cal. 4578 - 233

This Hand-Winding model from 1972 features a 40mm Hardlex-Coated Steel case. With its 22mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-2d611a46a515]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1972

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