Seiko Cal. 4528 - 655

This Quartz model from 1981 features a 35mm PVD Black case. Powered by the 4528 caliber with 19j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-94e55413513d]

Also known as: Sumo, Bullhead

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1981

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