Seiko Cal. 0720 - 935

This Spring Drive model from 1971 features a 46mm Titanium case. With its 21mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-554b8c93a7de]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1971

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