Seiko Cal. 5634 - 588

This Quartz model from 1970 features a 44mm PVD Black case. Powered by the 5634 caliber with 31j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-e1612a37e069]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1970

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