Seiko Cal. 6638 - 486

Seiko 6638-486

Released in 1966, the Cal. 6638 with design code 486 was part of Seiko's domestic market collection. With its 18mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-a89534dc337b]

Also known as: Crown

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
46mm
Case Thickness
15.9mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Cream
Jewels
23j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1966

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