Seiko Cal. 6638 - 239

Seiko 6638-239

This Kinetic model from 1979 features a 39mm Hardlex-Coated Steel case. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-aa3a33ff30a7]

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
8.3mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Champagne
Jewels
22j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1979

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