Montblanc MB R200

The MB R200 is an automatic dual-frequency chronograph manufactured by Montblanc. It operates at 21,600 vph for normal timekeeping and 360,000 vph (50 Hz) when the chronograph is engaged, delivering 1/100th-second precision displayed via rotating discs. The caliber is entirely in-house and represents one of Montblanc's most complex movements, derived from the Rieussec chronograph architecture. Introduced in 2011, it has been discontinued.