Seiko Cal. 5689 - 877

This Spring Drive model from 1974 features a 40mm Hardlex-Coated Steel case. Powered by the 5689 caliber with 19j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-def440c8f0ab]

Also known as: Monster, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1974

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