Mercedes-Benz Classic Museum 300SL Gullwing Roadster Factory alarm desk clock. Original owner. This clock was only available directly from Mercedes-Benz Classic in 2008. The clock is a revision of the original VDO Kienzle factory 300SL clock found in the Gullwing and Roadster. The billet aluminum body is 3.5"x3.5"x1.25". The clock keeps accurate time. Free local pickup from Hallandale beach FL. If you're picking up locally, please message me and I’ll revise my listing so you don’t have to pay the shipping cost. PLEASE PLAY VIDEO.