Seiko Cal. 4420 - 130

This Hand-Winding model from 1965 features a 40mm Gold-Plated case. With its 18mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-944a1772084a]

Also known as: Monster, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1965

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