Seiko Cal. 4428 - 991

Seiko 4428-991

This Spring Drive model from 1976 features a 37mm Gold-Plated case. With its 20mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-14175e346b28]

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
8.6mm
Lug Width
20mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Navy
Jewels
22j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1976

Related Models

seikata-wm-14175e346b28