True Temper planting clock made by Mectronics. The lower dial rotates once per year and tells you when to plant your beans, beets, broccoli, carrots, corn, cucumbers, eggplant, endive, kale, leaf lettuce, muskmelon, onion sets, parsley, peas, peppers, pumpkins, radishes, rutabaga, spinach, squash, tomato and turnip. The settings can be customized to your location in the continental United States. The upper dial shows the phase of the moon and has regular hour and minute hands. The original instruction booklet and setting tool come with the clock. The map on the back shows the time of first and last frost in the US. The back of the clock is labeled "Designed and manufactured by Mechtronics Corporation, Stamford, Connecticut".
The same clock was sold under several names including Burpee Seed Company.
The clock is 15 1/8 inches tall, 10 1/4 inches wide, and 3 7/8 inches deep. The case is made of pine with a pressed board back and plastic cover over the dial. The clock is electric and runs perfectly. I just installed a new motor, which cost $28. The motor is Synchron I129RB. The original motor was dated 5 78 (May 1978).