Seiko Cal. 6636 - 108

The 6636-108 is a sought-after Quartz piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-55e82e2aefb1]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1978

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