Seiko Cal. 4520 - 691

This Spring Drive model from 1975 features a 34mm Titanium case. With its 20mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-572ba719da31]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1975

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