Seiko Cal. 6657 - 561

This Quartz model from 1989 features a 41mm PVD Black case. Powered by the 6657 caliber with 21j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-3861ac5d9ba2]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1989

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