Seiko Cal. 6643 - 959

The Seiko 6643-959 represents an important milestone in Seiko's 1979 lineup. Powered by the 6643 caliber with 23j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-3a1b299aed78]

Also known as: Pogue, Silverwave

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1979

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