Seiko Cal. 4520 - 920

The Seiko 4520-920 represents an important milestone in Seiko's 1971 lineup. With its 18mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-88f97f5f19d3]

Also known as: UFO, Sea Horse

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1971

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