A split-secondsRattrapante A split-seconds chronograph, also known as a rattrapante, is a complication in a chronograph watch that allows the user to measure two elapsed times simultaneously. It has two second hands, one that runs continuously, and another one that can be stopped and started independently. The user can stop one of the hands to measure an interval and then release it to catch up with the other hand. [Learn More] chronographChronograph A chronograph complication is a feature in a watch that allows the wearer to measure elapsed time in addition to telling the time. It works by having a separate set of gears and levers, called the chronograph mechanism, which is activated by pressing a button or a pusher. The chronograph mechanism starts and stops the chronograph's second hand, which is usually located on the watch's dial, separate from the regular watch hands. The elapsed time is usually displayed on a sub-dial or a register on the watch's dial. [Learn More], also known as a rattrapanteRattrapante A split-seconds chronograph, also known as a rattrapante, is a complication in a chronograph watch that allows the user to measure two elapsed times simultaneously. It has two second hands, one that runs continuously, and another one that can be stopped and started independently. The user can stop one of the hands to measure an interval and then release it to catch up with the other hand. [Learn More], is a complication in a chronograph watch that allows the user to measure two elapsed times simultaneously. It has two second hands, one that runs continuously, and another one that can be stopped and started independently. The user can stop one of the hands to measure an interval and then release it to catch up with the other hand.