Seiko Cal. 6645 - 909

This Spring Drive model from 1978 features a 45mm Stainless Steel case. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-f5d9528e8cf5]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1978

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