Seiko Cal. 6647 - 922

This Spring Drive model from 1975 features a 36mm Stainless Steel case. It features a Navy dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-df1a9f78ff4d]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1975

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