Rolex perpetual planet: four things to know

A primer to Rolex’s environmental conservation efforts

(Sept 3): Though better known for making the world’s most sought-after watches, Rolex is also a staunch purveyor of environmental causes. While the watch brand’s efforts have been going on for decades, it is only now that Rolex has consolidated them – we imagine for purposes of greater clarify and focus – in a singular campaign christened ‘Perpetual Planet’.