Limited Edition of 1000 Pieces. Ball Watch Company Roadmaster Rescue Chronograph Limited Edition DC3030C-S-BKWH. Whether by air, land or sea, every rescue mission is unique. But theres one common truth: timing is everything. A purpose-built tool for critical search and rescue situations, the new Roadmaster Rescue Chronograph delivers extreme accuracy, easy readability and high functionality. Engineered with a patented pusher locking system, the chronograph function works in unison with the pulsometer scale to measure heart rate, while two illuminated sub dial counters track elapsed time. And for countdowns at all hours, the ceramic diving bezel features a bold micro gas tube inset. Vital functionality and versatile form that’s ready to venture wherever necessary.