Despite its build - 44,8 mm in diameter and 15,7 mm thick - the biggest ever achieved by Breitling, the Hercules automatic chronograph fits even the most slender of wrists. On the performance side, it benefits from exceptional legibility: a double display of the times measured, with a 60 min central totaliser plus a linked hours and minutes totaliser at 6 o’clock, distinguishing between times smaller than and greater than 1h. It additionally includes a 24 h display, an IFR/VFR flight level indicator and a bidirectional bezel with degrees and compass rose.