Baume & Mercier Riviera Automatic Watch, Chronograph 10623Created in 1973, the Riviera watch returns this year to revive the spirit of an inspiring watchmaking era. Robust and reliable, Riviera chronographs carry a tried and tested Swiss made automatic movement (Valjoux 7750) with a 48 hour power reserve and runs at 28,800 vph, or 4 Hertz. Each model features a double day date window at three oclock, a small second hand at 9 oclock and two sub dials for chronograph functions: a minute counter at 12 oclock