This is a Rolex Oyster Perpetual Datejust, specifically the Rolesor (steel and yellow gold) edition with a black dial and factory-set diamond hour markers.
• Model Family: Rolex Oyster Perpetual Datejust
• Common References:
◦ 41mm: 126333-0006
◦ 36mm: 126233-0021
• Case/Bracelet: Oystersteel + 18ct Yellow Gold Rolesor with Jubilee bracelet
• Bezel: Fluted Yellow Gold bezel
• Dial: Black dial with factory-set diamond hour markers
• Movement: Manufacture Calibre 3235 automatic movement (70-hour power reserve)