With an aggressive blackened titanium case measuring 48 mm x 14.40 mm – and with a depth rating of 300 meters – the new Breitling Avenger Blackbird is essentially a larger, more robust version of the Avenger Blackbird 44.
Both the 48 and 44 mm versions share the same design, same dial (apart from the date having white paint around the aperture instead of red), and the same automatic caliber 17 (ETA 2824) movement.
The differences are in the case dimensions, weight, and water-resistance rating. The 48 mm model is 4 mm larger in diameter and 1.70 mm thicker, while weight has increased by 17.50 grams. With the additional size and weight, the Avenger Blackbird gains an additional 100 meters (or 328 feet) of water-resistance.