Seiko Cal. 4440 - 581

This Solar model from 1979 features a 45mm Stainless Steel case. Powered by the 4440 caliber with 17j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-477c94c54481]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1979

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