Seiko Cal. 6647 - 100

This Solar model from 1990 features a 42mm Hardlex-Coated Steel case. Powered by the 6647 caliber with 33j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-27509d71a429]

Also known as: Sumo, Rally

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1990

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