Baume & Mercier caliber BM12-1975A

Baume & Mercier caliber BM12-1975A

Ref. BM12-1975A

The Baume & Mercier caliber BM12-1975A is an automatic movement with a 120-hour power reserve, beats at 28,800 vph, and carries 21 jewels.

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.

Type
Automatic
Display
Analog
Power reserve
120 h
Frequency
28800 vph
Jewels
21
Diameter
28.2 mm
Complications
Date, Hours, Minutes, Seconds
Base caliber
Baume & Mercier caliber BM12-1975M

Used in

5 models