A 41mm stainless steel automatic chronograph watch featuring the APS self-developed Calibre 4401 integrated movement, which includes flyback chronograph, hour/minute/small second display, and date function. Its iconic octagonal bezel is secured by eight hexagonal screws and paired with a 'Grande Tapisserie' large grid dial, offering a distinct layered effect. The integrated stainless steel bracelet continues the classic design of the first Royal Oak from 1972, combining sportiness with elegance. The newly developed integrated movement features a column wheel and vertical clutch mechanism, with a frequency of 28,800 vibrations per hour, matching the original version exactly, with a power reserve of approximately 70 hours and water resistance up to 50 meters. AP blends high-end watchmaking craftsmanship with avant-garde aesthetics, making it a paragon of luxury sports watches. After multiple comparative tests, APS has perfectly replicated the original version.