Seiko Cal. 4527 - 792

This Spring Drive model from 1980 features a 35mm PVD Black case. Powered by the 4527 caliber with 21j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-a0ea1f16cd1e]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1980

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