Seiko Cal. 6639 - 444

Seiko 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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seikata-wm-9b88874f08c4