Baume et Mercier Watch Riviera M0A10812. Designed in 1973, the RIVIERA Collection is designed for watchmaking aficionados who appreciate combining sportiness with elegance and love watches that embody versatility in a bold way. Challenging conventions at its creation, with a dodecagonal bezel and case –its twelve sides symbolizing the twelve hours on the dial – it represents the designer watch spirit that is essential to Baume & Mercier, boldly showcasing an innovative striking aesthetic.