Seiko Cal. 6639 - 707

Seiko 6639-707

This Kinetic model from 1979 features a 42mm PVD Black case. Powered by the 6639 caliber with 20j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-8d8a9fc65023]

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
42mm
Case Thickness
14.0mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
70m
Dial Color
Black
Jewels
20j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1979

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seikata-wm-8d8a9fc65023