The Rolex Daytona produced by QF features a powerful 4130 movement and showcases its charm with 904 stainless steel and a 40mm diameter.

### I. Case Material and Craftsmanship The QF Rolex Daytona features a case crafted from top-grade 904 stainless steel, a material renowned for its exceptional corrosion resistance and widely used in high-end watchmaking. With an excellent texture, it undergoes meticulous polishing and finishing to achieve a shimmering luster comparable to the authentic model. It also boasts high wear resistance, making it less prone to scratches during daily wear and maintaining a like-new appearance over time. The case diameter is precisely 40mm, suitable for most wrist sizes, while the reasonable thickness ensures ample space for the intricate movement inside while maintaining an overall slim profile, offering a comfortable and snug fit. The crown and buttons are designed with a screw-down mechanism for smooth operation, effectively enhancing the watch’s water resistance to meet daily life防水 standards (e.g., worry-free during handwashing or light rain). ### II. Movement Performance Highlights The 4130 movement at its core is the epitome of precision. This highly sophisticated automatic chronograph movement is a deep复刻 (reproduction) of the original Rolex design. Measuring 30.5mm in diameter and 6.5mm in thickness, it features an intricate internal structure with only 201 components—significantly fewer than its predecessor—simplifying the design to enhance reliability, stability, and ease of maintenance. Equipped with 44 jeweled bearings and a balance frequency of 28,800 vibrations per hour, it ensures precise and stable timekeeping with minimal daily deviation. The power reserve lasts up to 72 hours, eliminating the need for frequent time adjustments even after short periods of inactivity. The chronograph function employs a vertical clutch and column wheel mechanism, enabling smooth start, stop, and reset operations. The chronograph seconds hand responds instantly, jumping precisely at the press of a button, with no shaking during reset—matching the original’s performance and catering to both professional timing needs and daily use. ### III. Dial and Crystal Details The dial design meticulously replicates the classic Rolex Daytona style. The surface features sharp printing, finely crafted hour markers and hands with strong three-dimensionality. Both the hour markers and hands are coated with high-quality luminescent material, ensuring clear readability in dim environments with a soft, sustained glow for easy nighttime timekeeping. The crystal is made of sapphire crystal, renowned for its high hardness, excellent light transmission, and scratch resistance, effectively preventing daily wear and tear and ensuring the time remains clearly visible at all times. Upon close inspection, a laser-engraved Rolex coronet logo can be seen beneath the crystal at the 6 o’clock position, a testament to the attention to detail in its craftsmanship. ### IV. Strap and Buckle Design The strap is also made of 904 stainless steel, seamlessly integrated with the case for a smooth and elegant look. The number of links can be finely adjusted to fit different wrist sizes, ensuring a comfortable and personalized fit. The folding buckle design offers easy opening and closing, equipped with a safety lock to prevent accidental detachment, ensuring reliability in daily use. The buckle is engraved with a clear Rolex logo, showcasing exquisite craftsmanship in every detail. **Note:** The term “复刻” (reproduction) is used here to reflect the original context. In formal contexts, it is essential to comply with intellectual property laws and avoid promoting counterfeit products.