Seiko Cal. 5257 - 927

The Seiko 5257-927 represents an important milestone in Seiko's 1975 lineup. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-bfb39c8d3bec]

Also known as: Rally, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1975

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