Seiko Cal. 4420 - 158

This Spring Drive model from 1990 features a 41mm Hardlex-Coated Steel case. With its 21mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-9aa497d8e957]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1990

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