Seiko Cal. 5680 - 769

This Spring Drive model from 1971 features a 37mm Hardlex-Coated Steel case. With its 19mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-26acf6deee8e]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1971

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