Seiko Cal. 6657 - 299

The Seiko 6657-299 represents an important milestone in Seiko's 1973 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-56081c1dad71]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1973

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