Seiko Cal. 5257 - 639

The Seiko 5257-639 represents an important milestone in Seiko's 1970 lineup. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-e70585ea79c1]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

32j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1970

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