Seiko Cal. 6657 - 557

The Seiko 6657-557 represents an important milestone in Seiko's 1991 lineup. With its 21mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-2518788c85a8]

Also known as: Crown, Arnie

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1991

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