Dandong 3135 Movement: The ultimate attention to detail is the foundation of HP Factory's craftsmanship, and creating the highest cost-performance ratio in the market is HP Factory's sincerity! .The top version of the Rolex 40MM Submariner is meticulously crafted from 904 steel, with every detail perfected for a comfortable fit. The bezel matches the genuine product, while the sapphire crystal features a coated date magnifier. Swiss luminous materials provide exceptional luminescence, matching the genuine product's brightness. The crystal has a hidden anti-counterfeit crown logo engraved in six positions, and the original folding clasp features unique inner wall engravings exclusive to the original Submariner series. The dual inner shadow font uses the Dandong 3135 integrated movement. We welcome you to appreciate this masterpiece!