Seiko Cal. 6657 - 271

This Kinetic model from 1983 features a 45mm PVD Black case. Powered by the 6657 caliber with 18j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-2843d11b0c9f]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1983

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