Seiko Cal. 6364 - 647

The Seiko 6364-647 represents an important milestone in Seiko's 1976 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-d34104d99125]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1976

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