Seiko Cal. 6638 - 304

This Spring Drive model from 1973 features a 38mm Gold-Plated case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-93933a76342e]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1973

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