Seiko Cal. 4531 - 259

This Automatic model from 1974 features a 36mm PVD Black case. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-eaeee004e614]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1974

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