Seiko Cal. 6639 - 632

The Seiko 6639-632 represents an important milestone in Seiko's 1979 lineup. Powered by the 6639 caliber with 17j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-00d5a8f4a107]

Also known as: Samurai

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

42mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Cream

Jewels

17j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1979

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