The calculated distance (air line) between Zürich (Kreis 7) / Witikon 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) / Witikon and Montreux has been calculated here.
Air line (approximately)
164 kilometers
88 nautical miles