Seiken Jodan Gyaku Tsuki is a punching technique used in Kyokushin karate. It translates to 'Reverse Punch to the Head.' In this technique, the practitioner delivers a punch with the rear hand to the opponent's head (jodan). The Punch is executed with speed, power, and precision, aiming to target the opponent's head or face area. Seiken Jodan Gyaku Tsuki is often used as a counterattack or during combinations to exploit openings in the opponent's defense. Proper execution of this technique involves generating power from the lower body, rotating the hips and torso, and extending the arm explosively to deliver a swift and forceful punch. Practitioners train in Seiken Jodan Gyaku Tsuki to develop accuracy, timing, and the ability to deliver effective strikes in self-defense or combat scenarios.