Seiko Cal. 6164 - 531

This Spring Drive model from 1976 features a 38mm Hardlex-Coated Steel case. Powered by the 6164 caliber with 34j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-c1f23df025f1]

Also known as: UFO, Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1976

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