Seiko Cal. 6639 - 665

This Spring Drive model from 1970 features a 43mm Gold-Plated case. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-73b985566a71]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1970

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