Seiko Cal. 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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