Seiko Cal. 5257 - 599

Released in 1976, the Cal. 5257 with design code 599 was part of Seiko's domestic market collection. With its 18mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-22cdc55ae744]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1976

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