Here’s a beautiful green and black Seth Thomas Adamantine mantel clock I repaired. The case has two pillars on each side. The case is16 3/4 inches long and 10 5/8 inches tall. The minute hand is 2 1/8 inch long from center to tip, and the dial’s minute track is 4 1/4 inches outside diameter. The year 1900 is on the bottom of the case.
Job 6493. I polished the pivots, installed 14 bushings, and tightened the click rivets. This clock has the “hip” movement, so-called because of its shape. The recoil escapement is in back. The original mainsprings are 11/16 inch wide. The time spring is 0.0183 inch thick, and the strike spring is 0.0187 inch thick. If springs like this need replacing, use thinner springs, as new springs are much stronger than old springs. I kept the originals in the clock, because they are in good condition and there is no reason to replace them.
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