Seiko Cal. 6257 - 720

The Seiko 6257-720 represents an important milestone in Seiko's 1968 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-d772836188f7]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1968

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