Maestro Men’s Automatic Calibre RW4200 Black Dial Watch. Case size 40mm. Black leather strap, black dial with indexes. Equipped with a mechanical movement with automatic winding, this maestro features a sleek stainless steel 40mm case, a sophisticated black dial with silver hands and a black leather strap to enhance the traditional look of this watch. The RW4200 mechanical with automatic winding in-house movement features a 38-hour power reserve. Launched in 2010, the maestro, meaning master demonstrates the mastery of Raymond Weil – Swiss horology and celebrates the world of classical music and the esteem commanded by a grand personality, composer or conductor. This mechanical watch collection combines elegance and sophistication with innovation, featuring some of the most renowned technical complications of the Swiss watchmaking tradition.