Seiko Cal. 4477 - 657

Seiko 4477-657

The Seiko 4477-657 represents an important milestone in Seiko's 1975 lineup. With its 18mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-f22728e5d320]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
11.4mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Green
Jewels
19j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1975

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seikata-wm-f22728e5d320