Seiko Cal. 6657 - 357

The Seiko 6657-357 represents an important milestone in Seiko's 1967 lineup. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-bf847d33e54a]

Also known as: Goldfeather

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1967

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