How much is this watch? look

This watch is a Rolex oyster calendar series 1 15200 black disc watch. Oyster perpetual motion 3 135 self-winding movement, sapphire crystal watch mirror, dial diameter 35mm, thickness 8mm, waterproof depth 100m, case made of 904L stainless steel, oyster clasp with adjustable chain belt. This watch is priced at 50,500 yuan in domestic genuine counters, with the highest discount of 45,450 yuan.