Seiko Cal. 6638 - 840

The Seiko 6638-840 represents an important milestone in Seiko's 1982 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-439cdb02b4c3]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1982

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