Seiko Cal. 6639 - 444

This Kinetic model from 1979 features a 39mm Stainless Steel case. Powered by the 6639 caliber with 25j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-9b88874f08c4]

Also known as: Silverwave

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1979

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