Seiko Cal. 6636 - 956

The Seiko 6636-956 represents an important milestone in Seiko's 1969 lineup. It features a White dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-b18a1bcae6a4]

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1969

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