Seiko Cal. 4420 - 517

Seiko 4420-517

This Hand-Winding model from 1980 features a 44mm Hardlex-Coated Steel case. With its 19mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-7dea0f7ed6f1]

Also known as: Bullhead, World Timer

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
13.2mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
40m
Dial Color
Silver
Jewels
25j
Frequency
28,800 bph
Power Reserve
67 hours
Year
1980

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