Baume & Mercier caliber BM12-1975A
|Brand:||Baume & Mercier|
|Base:||Baume & Mercier BM12-1975M|
|Hands:||Hours, Minutes, Seconds|
Baume & Mercier caliber BM12-1975A is a self-winding movement with a power reserve of five days. It was developed by ValFleurier, Richemont's movement specialists. It is fitted with a TwinSpir balance spring made of two layers of silicon, plus a Powerscape escapement with both escape wheel and lever made of the same material.