Seiko Cal. 6636 - 818

Released in 1978, the Cal. 6636 with design code 818 was part of Seiko's domestic market collection. It features a White dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-3d91dca3aea1]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

White

Jewels

32j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1978

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