Hi everyone, I´m about to trade an Omega Speedmaster MK40, for a Chopard mille miglia gt xl 8459. However i dont know anything about chopards. If its a good deal and/or if the watch is original ? any help/tips pls? The blue screws on the case seem strange to me.. (PS i have to sell/trade the Omega has im unable to be near to Tritium) Thank you so much