For serious tournament players, a mechanical chess clock is not going to be your only clock, as you can’t use it for bonus increments or delays. You can, however, work it into Blitz chess games, and appreciate its unique aesthetic even if you only play a few times a year. Wind each clock up by hand before your game, set them to the maximum minutes for each player, and begin. Every time you make a move and press the button, your clock will stop and your opponent’s will start running. A special red flag indicator on this model helps you manage your last minute of play before dropping to signal game over.