Ap Produced by ZF .ZF Factory A Audemars Piguet 50th Anniversary Edition Ref. 15550 Full Series A .37mm brand new 50th Anniversary version Ref. 15550ST .The new green dial style has arrived. The green hue immediately reminds one of Audemars Piguet's brand colors, fresh and captivating! .The new Ref. 15550ST retains the original design but incorporates several refined adjustments to the case, dial, and strap, primarily enlarging the angled surfaces at the top and bottom of the case to achieve a better overall proportion! On the other hand, the hand-finished satin polishing has been enhanced, resulting in a more pronounced interplay of light and shadow between the satin and polished surfaces.The dial still features the signature square pattern, with a 24K gold three-dimensional Audemars Piguet logo at the 12 o'clock position created using an electroplating process (similar to 3D printing), replacing the previous three-dimensional AP logo and printed Audemars Piguet text.The 22K exclusive oscillating weight of the movement also bears the 50th Anniversary inscription. This oscillating weight showcases the 50th anniversary logo and the Audemars Piguet logo through intricate openwork craftsmanship, and it, like the case, is finished with a combination of satin and polished surfaces! Furthermore, the case back has been more seamlessly integrated into the case, providing a snug and comfortable fit that follows the wrist's curvature.The strap has also been redesigned, with the first four links transitioning from parallelogram to trapezoid shapes, and the strap width gradually tapering, enhancing the streamlined aesthetic. All links are also thinner, making it feel lighter when worn! A luxurious and exquisite recommendation for women's mechanical watches, meticulously crafted for ultra-realistic product photography, making it the best luxury gift option. Please recognize ZF's exclusive quality.