Time Out says
The Jules Verne is just below the Urania observatory, reached via Brasserie Lipp. It can be crowded of an evening, but a window table makes for a perfect date.
Sitting here with 360° views of the city, sipping on a cocktail and holding your significant other's hand might be as close to a perfect date as it can get in Zurich. The bar just below the Urania observatory is reached through the elevator inside Brasserie Lipp and can be quite crowded around 10pm, but a table at the window is worth the wait. For those who are trying to get a deal sealed and signed: they serve a business lunch here during the week.