Seiko Cal. 6636 - 742

The Seiko 6636-742 represents an important milestone in Seiko's 1985 lineup. It features a White dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-edcc1f24461e]

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1985

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