Seiko Cal. 5257 - 538

The Seiko 5257-538 represents an important milestone in Seiko's 1978 lineup. With its 22mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-f21ef5c4369f]

Also known as: Helmet, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Champagne

Jewels

25j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1978

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