Seiko Cal. 4530 - 459

This Spring Drive model from 1977 features a 43mm Gold-Plated case. Powered by the 4530 caliber with 31j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-e4648495e658]

Also known as: Sumo, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1977

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