Seiko Cal. 5631 - 332

The Seiko 5631-332 represents an important milestone in Seiko's 1973 lineup. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-187e8b5b06bc]

Also known as: Sumo, Flighty

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1973

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