Seiko Cal. 6636 - 805

The Seiko 6636-805 represents an important milestone in Seiko's 1978 lineup. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-3acc03ea8e89]

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1978

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