GH FACTORY IWC Ingenieur Automatic Watch 40 Quick Release Version has undergone a comprehensive upgrade, aiming to create the highest version of the Ingenieur on the market. It breaks through multiple technical bottlenecks in pursuit of perfection! .1. Upgraded genuine quick-release strap mechanism. The middle links of the strap are made with both brushed stainless steel and polished beads, in line with the original details.2. Thickness issue has been resolved by replacing the original imported 9015 movement with 32111 automatic mechanical movement, which is equipped with an anti-magnetic soft iron shield to protect the watch from magnetic interference. The watch has a diameter of 40mm, a thickness of 10.8mm, and a lug-to-lug distance of 45.7mm, consistent with the original model.3. The dial's textured design has been fully enhanced, produced through stamping and then galvanized. The green dial and blue-green dial can display different colors under varying light conditions! .4. Each case back is equipped with an independent code, ensuring that every watch has its unique identification!