Seth Thomas Adamantine Mantel Clock, Back Escapement Movement, 1893

May 26, 2013 | By | Reply More

This Adamantine mantel clock with black slate and tan marble appearance has the date code 3981F (June 1893) on the bottom. The case is 10 3/16 inches tall and 16 1/2 inches wide at the feet. The paper dial has a 4 1/4 inch minute track, and the minute hand is 2 1/8 inches long.

The movement is the “hip” style with rear recoil escapement. (This movement was used in Adamantine clocks until replaced by the No. 89 movement in 1901.

IMG_4406IMG_4402Date code 3981F (June 1893)

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Repair job 5979. I polished pivots and installed 5 bushings. The mainsprings were too wide so I replaced them. The mainsprings I used are CML 175.3 from Mile High Clock Supplies. The dimensions are 11/16 inch wide by 0.0168 inch thick by 96 inches long.

The pendulum bob is 1 1/8 inches diameter and weighs 2.4 ounces. It is old and may or may not be original.

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Category: American Clock Repair, Seth Thomas Clock History

Last updated: May 26, 2013

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