If you track your car, get a BBK. If not and you want to spend a big wedge on something go with the watch...but at least get something original. Panerai is (over) played out at this point. Just my 2c...
08 E90 | Jet Black / Black | 6MT
Mods: RAC RG63 w/ Pirelli Corsa 255F/285R | Akrapovic Evo Exhaust | OEM Blacklines
Winter Setup: OEM 18s w/ Nokian Hakkapeliita R 245/40-18