Seiko Cal. 4521 - 638

This Quartz model from 1967 features a 46mm Gold-Plated case. Powered by the 4521 caliber with 24j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-550105d006c4]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1967

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