Seiko Cal. 6639 - 317

This Automatic model from 1972 features a 45mm Gold-Plated case. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-160fdd5988ae]

Also known as: Monster, Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1972

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