LONDON — “We’re not at the heights of 2010 and 2011, but the market has definitely recovered its mojo,” said Henry Howard-Sneyd, Sotheby’s chairman of Asian art, who was the auctioneer in New York this month when an 18th-century Chinese teapot sold for $3.5 million, more than 10 times the low estimate.

The teapot was one of the star lots in Sotheby’s biannual “Asia Week” auctions that raised $60.4 million. Thanks to the presence of two prestigious single-owner collections, the total proceeds from the series was 149 percent higher than the equivalent series last September. All five of the Sotheby’s auctions exceeded their high estimates. Christie’s rival sales of Asian art in New York took $58.6 million, an 8 percent increase on September 2015, with an overall selling rate of 89 percent across its eight auctions.

Brexit, the impending U.S. presidential election and general macroeconomic jitters might have cooled demand for European and American art, but the market for historic Chinese artifacts seems to be warming up again – at least at auction.

“A sense of depth is back,” added Mr. Howard-Sneyd, commenting on the number of bidders from China, Hong Kong and Taiwan vying for the lots in New York. Sotheby’s said that collectors from Asia purchased 58 percent of the lots and accounted for 75 percent of the value of the sales. In the case of the 18th-century famille-rose “Hui Mountain Retreat” teapot, more than half a dozen bidders competed before it was bought by an Asian collector.