The calculated distance (air line) between Zürich (Kreis 7) and Montreux is approximately 102 miles respectively 164 kilometers.
By car or train, the actual journey to Montreux is certainly longer, as only the direct route (as the crow flies) between Zürich (Kreis 7) and Montreux has been calculated here.
Air line (approximately)
164 kilometers
89 nautical miles