Seiko Cal. 4520 - 323

This Hand-Winding model from 1991 features a 36mm PVD Black case. Powered by the 4520 caliber with 31j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-fb6f585cedf4]

Also known as: Arnie, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1991

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