Seiko Cal. 6257 - 866

The Seiko 6257-866 represents an important milestone in Seiko's 1966 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-3f5dd338f3e2]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1966

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