The leader of cell C-7 of terrorist unit Z-99. The terrorist unit is based in the secret zone of Binh Duong Province and has been responsible for hundreds of grenade attacks, minings, bombings, mortarings, and assassinations that have killed a few thousand people and have terrorized all of Saigon. The terrorist unit’s specialty is the dual bomb attack, with the second designed to kill rescuers. He gets his name due to his ability to turn wristwatches into triggering devices for these improvised bombs. He removes the second and hour hands from watches, inserts a battery wire through a hole in the crystal, and sets the minute hand to the desired delay time. He is “a tiny, shivering man with a full head of coarse hair.” He is a graduate of philosophy from the University of Saigon and the eldest son in a respectable Catholic family who has disowned him due to his radical activities. Before becoming a terrorist, he was an actual watchmaker.