Breitling Endurance Pro 44 IRONMAN® 70.3 World Championship 2025

Breitling's Endurance Pro 44 IRONMAN® 70.3 World Championship 2025, reference X823101K1C1S1, is a 44 mm chronograph built in Breitlight, the brand's own lightweight case material. The case measures 12.5 mm thick, with a lug width of 22 mm. A sapphire crystal, glareproofed on both sides, protects the blue dial. Inside runs the Breitling Caliber 82, a thermocompensated SuperQuartz movement with chronometer certification. The chronograph times to a tenth of a second over 30 minutes, and the dial also carries a date aperture and small seconds, with luminous hands and numerals for legibility. A rubber strap with a tang-type buckle completes the piece. Water resistance is rated to 100 metres.