Seiko Cal. 5654 - 638

This Spring Drive model from 1981 features a 34mm PVD Black case. Powered by the 5654 caliber with 30j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-473a89309b29]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1981

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