Seiko Cal. 5623 - 578

This Solar model from 1965 features a 40mm Hardlex-Coated Steel case. Powered by the 5623 caliber with 20j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-7bcd3de47bd9]

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1965

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