This is a Rolex Oyster Perpetual Datejust, specifically the steel-and-white-gold Rolesor edition with a slate grey dial and factory-set diamond hour markers.
Key Details
• Model Family: Rolex Oyster Perpetual Datejust
• Common References:
◦ 41mm: 126334-0006
◦ 36mm: 126234-0035
• Case/Bracelet: Oystersteel + White Gold Rolesor, paired with a classic Jubilee bracelet
• Bezel: Fluted White Gold bezel (the iconic "knurled" Rolex bezel)
• Dial: Slate grey dial with factory-set diamond hour markers
• Date Window: 3 o'clock position with the famous Cyclops lens
• Movement: Manufacture Calibre 3235, a high-precision automatic movement with a ~70-hour power reserve