The diamond ring unified 1850 TW4131 Universe Daytona is officially here. A true version of the 4131 proprietary movement. The TW 4131 movement is directly developed according to the original 4131. It has reasonable design and good stability. Shanghai 4131 movement It is based on the 4130 movement made with 7750 technology, and then modified into 4131. For example, this Fake plywood and fake shock absorbers have poor stability and are not easy to repair. Choosing the right version is very important, so stay tuned for more comparison information! Highly recommended, currently the most stable version in all aspects.,