Seiko Cal. 6257 - 671

This Spring Drive model from 1976 features a 45mm Hardlex-Coated Steel case. With its 19mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-e12d178cdb55]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1976

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