Seiko Cal. 4520 - 172

Seiko 4520-172

This Spring Drive model from 1966 features a 35mm Stainless Steel case. With its 18mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-7421ce0cfdcf]

Also known as: Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
35mm
Case Thickness
13.8mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Burgundy
Jewels
27j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1966

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