Seiko Cal. 4520 - 983

This Hand-Winding model from 1969 features a 46mm Hardlex-Coated Steel case. With its 21mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-4cabea261832]

Also known as: Helmet, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1969

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