Seiko Cal. 6659 - 642

The Seiko 6659-642 represents an important milestone in Seiko's 1983 lineup. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-db85731342bf]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

46mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1983

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