Breitling Endurance Pro 44mm Navy Blue – Ref The Breitling Endurance Pro 44mm Navy Blue with the reference X82310D51B1S2 combines sporty elegance with technical precision and is the ideal companion for active wearers with a sense of style and performance. The 44 mm case is made of Breitlight®, an innovative material that is extremely lightweight, anti-magnetic, corrosion-resistant, and scratch-resistant. The matte finish of the case underlines the sporty look while ensuring a comfortable fit – even under extreme conditions. The deep blue dial is complemented by high-contrast white indices and hands coated with Super-LumiNova®, ensuring perfect legibility in all lighting conditions. The navy blue inner bezel features a pulsometer scale, allowing for quick and precise heart rate measurement during sporting activities. The red accents on the chronograph hand add stylish color accents. Inside the Endurance Pro is the Breitling SuperQuartz™ movement, known for its exceptional accuracy – up to ten times more precise than conventional quartz movements. The navy blue rubber strap with the Breitling logo ensures a comfortable fit and a secure fit on the wrist. The Breitlight® pin buckle provides additional stability and durability. The Breitling Endurance Pro 44mm Navy Blue – a perfect combination of sporty functionality, stylish design and the highest precision – made for demanding adventures and active everyday life. You receive a 1-year warranty on the functionality of the movement.