For those wondering, accuracy of the 1847 MC movement is -3/+7 per Cartier Boutique spec sheet : r/Cartier
Movements
Cartier Ronde WSRN0032 en Acier inoxydable | CHRONEXT
Here's the @cartier Santos, mechanical movement with automatic winding, 1847 MC. Case in steel, seven-si… | Watches for men, Luxury watches for men, Stylish watches
Cartier Caliber 1847 MC Watch Movement | Caliber Corner
Cartier 2018: Nouvelle génération en mouvement | Watchonista
Cartier caliber 1847 MC » WatchBase
Cartier Rotor No. 1847 MC for Spare Part Use Only MX-319 | eBay