Seiko Cal. 6657 - 128

The 6657-128 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-cea3dd44a0c2]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1994

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