Seiko Cal. 6638 - 746

The Seiko 6638-746 represents an important milestone in Seiko's 1993 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-f1cd6666e5a7]

Also known as: Navigator, Flighty

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1993

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