The Omega Boutique is located in the lobby of the Bellagio. The collection of watches and jewelry the store has is extensive, and the workers there are very accommodating, especially the gentleman by the name of Khai. He is well-informed on every last detail of each watch I asked about - I focused mainly on the Constellation collection because all of the watches looked stunning, both in the case and on my wrist - and has a patient demeanor. If you are new to Omega or watches in general, look for Khai because the man provides incredible service and does not rush you to purchase anything.