Seiko Cal. 6664 - 393

The Seiko 6664-393 represents an important milestone in Seiko's 1979 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-b8c8db9bb248]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1979

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