GH·FACTORY IWC Engineer Automatic Watch 40 quick-release version has been fully upgraded. It is committed to creating the highest version of the engineer in the market, breaking through multi-layered technical bottlenecks, and striving for perfection! 1 Upgraded the same quick-release strap device as the genuine one. The middle links of the strap are made of frosted fine steel straps and medium-bead bright steel straps, synchronizing the details of the original version. 2 Solved the thickness problem, using the original imported 9015 to 32111 fully automatic mechanical machine The core has a built-in antimagnetic soft iron device to protect the watch from magnetic interference. The 40mm diameter, 10.8mm thickness, and 45.7mm longitudinal distance between the lugs are consistent with the original. 3 The dial pattern design has also been improved in all aspects, and is made by stamping. Galvanized, the green dial (blue-green) dial can show different colors under different lights! 4Each bottom cover is equipped with an independent code, one code for each watch! ,