Warrior Ancient and Medieval Rules

[Doug]

Chess clocks are expensive and their precision isn't needed.

You could use cheap egg-timer sand hourglasses, and allow a certain
number of "flips" per general in the player's army. His opponent is
responsible for turning the hourglass over or the player gets the
extra time.

In campaign or scenario games the number of flips would be dependant
on the quality of the general.