1:1 replica Omega Seamaster men's mechanical watch 2531.80.00 replica questions & reviews

I am a customer from Xinjiang. In October 10 I bought an Omega OMEGA SEA-MASTER PRODIVERS 300 Ref.2531.80 Seamaster automatic mechanical watch, the watch keeps time well, but I do not know how to adjust the date, and also it does not seem to be an automatic watch, it needs winding, please advise. He Xi'an