Audemars Piguet 15400 Series Upgrade V2 Version Men's Watch is equipped with the stable performance 9015 modified Cal.3120 movement. It features super sapphire glass, which is more scratch-resistant and durable. The watch boasts an exceptional luminescent display, with each dial pin individually processed in Japan. The steel bracelet made in Taiwan undergoes multiple processes, with each link polished and assembled to fit closely to the wrist for comfortable wear. Each calendar is meticulously set with a matching color version, and the V2 version of the movement is updated with a gold oscillating weight, striving for precision in every detail. Every component is carefully compared, maintaining the original diameter of 41mm. With 20 years of experience, the Taiwanese factory focuses on the highest quality polishing, ensuring overall quality that rivals major manufacturers.