Introducing the highly anticipated 3K replica of the new Patek Philippe series CUBITUS 5821 watch, featuring a Nautilus 1 movement: 1. Equipped with a customized 9015 modified Cal. 26-330 SC fully automatic self-winding movement; 2. Custom-grade ergonomic 316L bracelet with a new clasp design; 3. Case: 45mm in size, measuring the diagonal length of the case excluding the crown (from the 10 o'clock to the 4 o'clock position). The case is approximately square, so the width at the top and bottom will be less than this measurement, giving it a visual effect comparable to the classic model 5711.Following the 5711, this is another perfect rendition of a classic style.