Seiko Cal. 4427 - 818

Seiko 4427-818

This Automatic model from 1974 features a 45mm Hardlex-Coated Steel case. With its 19mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-894e45832ed4]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
14.8mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
30m
Dial Color
Silver
Jewels
22j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1974

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