ETA's small-seconds automatic with date, the 2892-A2's small-seconds counterpart (same casing diameter and date-window position, but 4.35mm high against 3.60mm, and the dials are not interchangeable). ETA product page: 11½ lignes, Ø25.60mm, 4.35mm high, 27 jewels, 28,800 vph, typical power reserve 50h, ETACHRON regulator, bidirectional self-winding, stop-second, semi-instantaneous date with quick correction, small seconds. Caliber Corner gives 26.2mm overall diameter, a 51° lift angle and a 42h runtime (ETA's current page's 50h is used here), production since at least 2005, and Elaboré, Top and Chronometer grades; no accuracy figures per grade were found, so they are left blank.