Seiko Cal. 5257 - 749

The 5257-749 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-1ccdc01ac0e5]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1980

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