Seiko Cal. 6636 - 209

This Spring Drive model from 1980 features a 45mm Two-Tone case. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-af661deab7b2]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1980

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