Seiko Cal. 4520 - 521

This Solar model from 1975 features a 36mm Gold-Plated case. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-fd5bb575796a]

Also known as: Bellmatic, Arnie

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Burgundy

Jewels

22j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1975

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