Seiko Cal. 3866 - 501

Seiko 3866-501

This Spring Drive model from 1966 features a 44mm Stainless Steel case. With its 20mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-50b34d4d70ab]

Also known as: Turtle, Sea Horse

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
13.9mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1966

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