The arrest was Ms. Martinez’s third in recent months, all in connection with grand larcenies targeting wealthy men at bars or restaurants, the police said. She was arrested on Dec. 15 in two thefts in Manhattan. In one, in July, she took a taxi to a man’s home near Greenwich Village after they drank together at a bar, the police said. When they arrived at his home, she decided to stay in the taxi and continue to her home; the man later realized that his wallet was missing from his pocket, the police said.

In the other episode, also in July, a man put his Rolex on his night stand after bringing Ms. Martinez to his apartment in Midtown. He went to use the bathroom and when he returned, Ms. Martinez and his watch were gone.

Another arrest in September followed a man’s report of having brought Ms. Martinez and another woman back to his Midtown hotel room in August. He said he fell asleep and then woke up to the realization that his Rolex, $3,000 in cash and his iPhone were missing.

The women suspected of stealing Rolexes may have been outdone in the rarity of their loot by two women the police said accompanied a man from the Sapphire New York club on the East Side of Manhattan to his room at the Baccarat Hotel New York this month.

The man told investigators that he put about $5,000 in cash, his watch and his driver’s license in a safe inside a closet after he returned to the hotel early in the morning, but did not remember locking it, the police said. He took one woman into the bedroom while the other stayed in the living room; after they both left, he discovered the items were gone.

The police did not give the value of the watch, but one timepiece the man recently posted on Instagram — a Greubel Forsey Double Tourbillon 30° Technique — sells for almost $600,000.

As for Mr. Williams, his Knicks won at Madison Square Garden the night after the robbery, with Mr. Williams scoring 9 points. The Knicks coach, Derek Fisher, has told reporters that the team does not set a curfew and that Mr. Williams has kept his focus on games.