Running News Daily

World records are remembered for the numbers on the clock, but sometimes the details surrounding them become part of the legend as well.

When Josh Kerr produced a breathtaking 3:42.66 to set a new men's mile world record at the London Diamond League on July 18, 2026, he didn't just rewrite one of athletics' most celebrated records. He did it while wearing one of the most exclusive performance watches ever created.

On Kerr's wrist was a one-of-a-kind Amazfit Cheetah 2 Pro, specially commissioned for his ambitious Project 222 campaign. The unique timepiece was designed by jeweller and former elite runner David Perry, combining luxury craftsmanship with cutting-edge sports technology in a way rarely seen in elite athletics.

The watch was impossible to miss. Its solid 10-karat gold-dipped bezel was set with 84 lab-grown diamonds, while the clasp carried a hand-engraved "222"—a tribute to Kerr's quest to become the first athlete in history to complete the mile in 222 seconds (3:42.00).

Although the record stopped just short of that ultimate target, Kerr's 3:42.66 performance was still one of the greatest middle-distance races ever run, lowering the world record and confirming his place among the sport's all-time legends.

The watch, however, was far more than a luxury accessory. Built around Amazfit's advanced sports technology, it captured every crucial detail of Kerr's historic run, providing an extraordinary glimpse into the physiology behind one of athletics' finest performances.

His race unfolded with remarkable consistency. Kerr covered the opening lap in 55.3 seconds, followed with 55.8, accelerated again with another 55.3, and completed the final 409 metres in 56.27 seconds to cross the finish line in world-record time.

The physiological data was equally impressive. Kerr maintained an average heart rate of 178 beats per minute, reached a peak of 188 bpm, and sustained an average cadence of 194 steps per minute throughout the race—evidence of the extraordinary efficiency required to perform at the absolute limits of human endurance.

Every stride, every heartbeat and every split was recorded as history unfolded on the London track.

Elite athletics has entered an era where wearable technology provides athletes and coaches with unprecedented insight into performance. From pacing strategies and recovery to biomechanics and physiological monitoring, modern devices have become powerful tools in the pursuit of excellence. Yet even the most sophisticated technology cannot replace the qualities that define champions.

No amount of gold, diamonds or cutting-edge engineering can substitute for years of disciplined training, exceptional talent, tactical intelligence and the courage to push beyond perceived limits when everything is on the line.

On that unforgettable evening in London, the dazzling watch certainly attracted attention. But when the finish-line clock displayed 3:42.66, it became clear that the greatest masterpiece wasn't the gold or the diamonds—it was the extraordinary athlete wearing them.