Seth Thomas Clock Co. self winding electric master clock, Model L1, ca 1913-1920.
This is essentially a Seth Thomas No. 20 weight driven clock supplied with a factory electric self winding No. 68 movement. It has jeweled pallets with micrometer beat adjustment movement that was recently put in excellent running condition and set up to run using "D" cell flashlight batteries. The mahogany case is unusual for it is flecked and has a swirl design. The finish is an old restoration that has been rubbed out to a nice satin sheen. It has nickel trim in like new condition. The painted dial is 14" and attached to the movement with four screws. It came with the optional mercury pendulum with original fancy thumb print glass jars. We have the mercury for this clock, but it is not pictured. There are two door locks on the side and a large nickeled beat scale. This is a very unusual battery powered clock that was produced in the teens and early twenty's. The excellent case is 62" tall, 17" wide, and 8.5" deep. LySeth Thomas, page 375. This rare model has always had an appraised price around $5000.