I am looking for the 3570 Moonwatch, with 1861. On the 3570.50 Speedmaster Moonwatch caseback, does the engraved imprint always sit upright? When turning around the caseback, the logo is positioned upright 12 o'clock to 6 o'clock, with the 3 buttons on the left side? Does all unopened casebacks have a red dot? All omega serviced / opened watches have a blue dot? Thank you for your advice in advance.