Seiko Cal. 4556 - 948

This Automatic model from 1973 features a 38mm Gold-Plated case. Powered by the 4556 caliber with 30j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-0f7e2026fa8b]

Also known as: Sumo, Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

30j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1973

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