Seiko Cal. 6390 - 977

Seiko 6390-977

This Hand-Winding model from 1979 features a 35mm Two-Tone case. With its 20mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-2a01f90c7dbb]

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
35mm
Case Thickness
14.7mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Blue Sunburst
Jewels
29j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1979

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