Seiko Cal. 4520 - 546

This Solar model from 1973 features a 38mm PVD Black case. Powered by the 4520 caliber with 23j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-8826d825e4bd]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Champagne

Jewels

23j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1973

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