Seiko Cal. 4578 - 994

The 4578-994 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4578 caliber with 25j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-0df72e3f8bef]

Also known as: UFO, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1973

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