Seiko Cal. 4427 - 313

This Solar model from 1969 features a 46mm Hardlex-Coated Steel case. With its 21mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-81fe84f9f4bf]

Also known as: Sumo, World Timer

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1969

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