I have both the diamond quartz analog and the excalibur, and both are fine. I've had them for years (not from chess.com), and there's nothing wrong with them. The Excalibur is cheap plastic, but it serves (plus it was a gift :))
Chess.com Clocks
Sort:
Are they any good? I need one so a game I play isn't played 4:00 by me and 62:00 by my opponent so I can prove that that I should win...
UPDATE: Please, only people who have bought one.