Seiko Cal. 5666 - 829

This Spring Drive model from 1974 features a 34mm Hardlex-Coated Steel case. Powered by the 5666 caliber with 22j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-1e8f07f00d1c]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1974

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