This watch is an Audemars Piguet Royal Oak Chronograph, one of the most famous and luxurious watches in the world of high-end timepieces. Here are its most prominent specifications based on the design shown in the image: 1. The Case Shape: The famous octagonal design by "Gérald Genta". Bezel: Secured with 8 white gold hexagonal screws. Material: Stainless Steel with finishes combining polished and brushed surfaces. Common Size: Often comes in a 41mm size (or 38mm in other versions). 2. The Dial Pattern: Features the "Grande Tapisserie" (raised squares) pattern in gray or dark gray. Sub-dials: Three contrasting blue sub-dials (Chronograph) for seconds, minutes, and hours. Date: A small date window located between 4 and 5 o'clock. Markers: White gold indices and hands coated with luminous material for reading in the dark. 3. The Bracelet Integrated bracelet famous for its streamlined design that gradually tapers towards the clasp, considered one of the most difficult bracelets to manufacture in the world. 4. Movement Type: Automatic movement. Often based on the AP Caliber 2385 or newer calibers, offering a power reserve of up to 40-70 hours (depending on the year of release). Material: Stainless Steel Brand: IWC Schaffhausen Movement Type: Automatic Watch Size: 40mm Features: Water Resistant