Seiko Cal. 6634 - 864

This Spring Drive model from 1966 features a 37mm Gold-Plated case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-e1c0a8ce82e1]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1966

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