Seiko Cal. 5657 - 443

This Solar model from 1972 features a 38mm Stainless Steel case. Powered by the 5657 caliber with 23j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-5a833dfc75c8]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1972

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