Seiko Cal. 4578 - 401

Seiko 4578-401

The 4578-401 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4578 caliber with 17j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-3a6e1843b4e9]

Also known as: UFO

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
12.6mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Champagne
Jewels
17j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1982

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