Breitling Premier AB1510 42 mm

The Premier B15 Duograph AB1510 brings the split-seconds chronograph into a 42 mm stainless-steel case with the collection's restrained, tailored proportions. A fixed bezel, cambered double-glareproofed sapphire and alligator-leather strap keep attention on the dial, while the integrated pushpiece in the non-screw-locked crown signals that the controls are more specialised than those of an ordinary chronograph. Its 100-metre rating adds useful resilience to the formal design.

Manual winding gives Manufacture Calibre B15 a direct, tactile presence. The 4 Hz movement carries 27 jewels, a 70-hour reserve and a column-wheel control system with vertical clutch. Its defining feature is the rattrapante mechanism: a second chronograph hand can be stopped to read an intermediate time while the primary hand continues, then reunited with it.