Seiko Cal. 6657 - 128

The Seiko 6657-128 represents an important milestone in Seiko's 1998 lineup. With its 19mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-702983916adf]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Cream

Jewels

33j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1998

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