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-beaded bright steel straps, synchronizing the original details. 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 lug spacing are consistent with the genuine product. 3. The plaid design of the dial has also been improved in all aspects. It is made by stamping and then galvanized. The green dial (blue-green) dial can show different colors under different lights! 4Each bottom cover is equipped with an independent code, one watch, one code, iwc