Atomic Clock Movement auto-synchronizes with the official U.S. time in Fort Collins, Colorado up to 5 times per day. Also known as radio-controlled, these atomic movements are the most accurate clock movements on the market today. Auto-sets for DST assuring you have the correct time, every time. Use these atomic clock movements in your next project, or replace your old quartz motors with an updated clock movement that sets itself! In order to ensure that your radio-controlled clock motor receives the best signal strength, we do not recommend using this movement with a metal clock face. Operates in the Continental U.S. only in Pacific, Mountain, Central, and Eastern time zones.

Case Size: 2 9/16"H x 2 3/16"W x 3/4"D

5/16" diameter shaft.

Fits 1/4" Maximum Dial Thickness

Hand set included.

Minute hand 4"

Instructions included.