Seiko Cal. 6331 - 459

This Spring Drive model from 1981 features a 39mm Gold-Plated case. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-8a9479873aa9]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

33j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1981

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