Seiko Cal. 4591 - 923

This Quartz model from 1975 features a 36mm PVD Black case. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-6786a94914ef]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1975

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