Tom Brady has added another six-figure watch to his ever-growing collection. While attending the E1 Monaco Grand Prix on Saturday, the former NFL star debuted a custom Jacob & Co. Twin Turbo Furious Tom Brady Edition timepiece, which is priced at $650,000, according to the brand.

Described as Jacob & Co.’s “most technically complicated watch yet,” the Twin Turbo Furious Tom Brady Edition timepiece is a one-of-a-kind watch designed with Brady’s input. Crafted from forged carbon in black, white and grey, it features Brady’s signature at 12 o’clock in place of the Jacob & Co. logo, and a single ruby marking his jersey number. It features a black rubber strap, emphasizing its functional design.

Key features of the watch include twin triple-axis flying tourbillons for precise timekeeping, a monopusher chronograph with a pitboard time differential calculator, allowing comparison of up to five consecutive lap times, and a decimal Minute Repeater using cathedral gongs for enhanced sound.

This collaboration continues Brady’s partnership with Jacob & Co. following previous notable pieces worn at Super Bowl LIX, such as the Billionaire Mini Ashoka and the Caviar Tourbillon in yellow sapphires.

On June 20, Brady was seen at Michael Rubin’s Fanatics Fest in New York City wearing Avi & Co.’s AH17 timepiece, which is priced at $350,000. The timepiece is crafted in 18-karat white gold with a 44mm diamond dial. Brady also donned a custom 2-kilo rose gold diamond Cuban chain, measuring 26.5 inches and weighing a total of 320.44 carats. The necklace is valued at $500,000, according to Avi & Co.

Brady is known as a luxury watch collector. In December, the former athlete auctioned part of his rare collection in partnership with Sotheby’s. “I’ve been so fortunate to have such an amazing journey in my career, and these watches and collectibles really capture those unforgettable moments and all the hard work behind them. I’m excited to give fans and collectors a chance to own and cherish these special pieces from my journey just like I have. I hope they bring as much joy and inspiration to fans as they did for me,” he said at the time.