Seiko Cal. 6657 - 611

The Seiko 6657-611 represents an important milestone in Seiko's 1991 lineup. With its 19mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-c7e146c684ee]

Also known as: Panda

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1991

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