Maximilian Büsser is the senior manager at a company based in where? 
Maximilian Büsser:  Prior to MB&F he was the CEO of Harry Winston, Inc. Rare Timepieces (1998 - 2005) and a senior manager at Jaeger-LeCoultre (1991 - 1998). Jaeger-LeCoultre: Jaeger-LeCoultre (] ) is a Swiss luxury watch and clock manufacturer based in Le Sentier, Switzerland, that dates back to the first half of the nineteenth century, founded by Antoine LeCoultre in 1833.
Le Sentier, Switzerland