EUREKA CLOCK CO. CRYSTAL REGULATOR. This lot contains a very nice "EUREKA CLOCK CO." crystal regulator. This clock dial is signed "Eureka Clock Co Ltd London". The dial is enamel and in good condition. The clock has a seconds bit and has bold black Roman hour numerals and black minute markers. The clock has black spade hands. The clock case has staining associated with the lacquer on the case. The case is structurally sound but the finish is all blotchy. The clock has its fast slow regulator on the front of the clock. The clock has its patented massive balance wheel with beautiful timing screws and cap jewels. The clock has a good hairspring. The clock is "No. 8294 Patent 14614 1906". The clock has a large battery in the base. 7.5"W x 13.25"H x 6"D. Estimated Value $1,500 - 2,500.