Seiko Cal. 6639 - 188

Seiko 6639-188

This Kinetic model from 1965 features a 42mm PVD Black case. Powered by the 6639 caliber with 28j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-479aba6d65db]

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
42mm
Case Thickness
15.2mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
110m
Dial Color
Green
Jewels
28j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1965

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seikata-wm-479aba6d65db