Seiko Cal. 6635 - 478

The Seiko 6635-478 represents an important milestone in Seiko's 1982 lineup. It features a Silver dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-f06a18c9f793]

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1982

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