This 1945 ROLEX Bubbleback is solid 10k. gold with a steel back. This watch is known as the “tropical” The 32mm. case is very clean for its age and certainly more uncommon being a solid gold top version. The correct ROLEX OYSTER winding crown is installed. This dial is completely original. The ROLEX NA movement was recently cleaned and is accurately keeping time. A (mostly) solid gold ROLEX for only $2950.