Steven Rostovsky, 52, was partying with the women at the Sapphire Gentlemen’s Club in the early hours of Monday.
But after Rostovsky, a watch dealer from Beverley Hills, took them back to the Baccarat hotel he decided to put his money and sapphire-encrusted watch in a safe – but didn’t lock it.
Rostovsky took one woman into the bathroom, leaving the other alone – before one decided to leave and the other offered to show her to the door.
Soon after that they were both gone, apparently along with the rose and fold Greubel Forsey Double Tourbillon 30 Technique watch – one of just 22 in the world.
However, according to the victim’s wife Janine, only Rostovsky’s driving licence was stolen – and she claims she and her husband have talked several times since the incident.