Seiko Cal. 6639 - 792

This Spring Drive model from 1970 features a 38mm Gold-Plated case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-83ee6a0aa65b]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1970

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