Seiko Cal. 5638 - 801

This Quartz model from 1971 features a 45mm Stainless Steel case. Powered by the 5638 caliber with 24j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-22bd7c448ee7]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1971

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