1) Choose your movement. We recommend the shortest clock shaft. AA powered: Q-65 (Step Motion High Torque) , Q-66 (Sweep Motion High Torque) OR C cell powered: Q-20 (Step Motion High Torque) or Q-67 (Sweep Motion High Torque)
2) Choose a Mounting Cup based on your clock movement.
3) Choose hands. How? Take your desired clock face diameter and divide by 2, then subtract the height of your numbers.
Example: A 42" Clock Face will usually have 4" Tall Numbers. 42 divided by 2 is 21. 21 minus 4 is 17. So clock hands in the 17 or 18" range will sit nicely with your numbers.
Example: A 24 inch Clock Face will usually have 2 inch tall numbers. 24 divided by 2 is 12. 12 minus 2 is 10. So choose 10 inch clock hands.