Seiko Cal. 4427 - 590

This Hand-Winding model from 1976 features a 41mm Hardlex-Coated Steel case. With its 22mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-1089ae76670c]

Also known as: Bullhead, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1976

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