Starting with the top left clockface and working clockwise around the others, the sum of the numbers pointed to by the 2 hands starts at 3 and increases by 2 each time.
Taking the hour and minute values on each watch separately, as you move to the right the hour value increases by 1, 2, 3 and 4, and the minute value decreases by 11, 22, 33 and 44.
Starting with the top clockface and moving clockwise around the others, the hour hand moves forward by 1 hour, then 2, then 3, while the minute hand moves forward 10 minutes, then 20, then 30.
Start with the watch on the left and move to the right. The time on the watches increases by 2 hours 3 min- utes, then decreases by 1 hour 16 min- utes, alternately.
Starting with the top left clockface and moving clockwise around the others, the minute hand moves back 2 places, then 4, 6 and 8, while the hour hand moves forward 2 places, then 4, 6 and 8.
Starting with the top clockface and moving clockwise around the others, the minute hand points to the value 3 less than that pointed to by the hour hand. Repeat for the other clockfaces, subtracting 4, 5 and 6 from the hour hand values.
Start with the top left clockface and move clockwise around the others. The sum of the numbers pointed to by the hour and minute hand follows the sequence 3, 6, 9, 12 and 15.