Seiko Cal. 4578 - 187

The 4578-187 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4578 caliber with 33j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-4ffce530728d]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1970

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