Actor Sylvester Stallone is auctioning off 11 luxury timepieces from his collection at Sotheby's, which includes a rare and highly valuable Patek Philippe Grandmaster Chime. Stallone, 77, acquired this double-face watch made of white gold in 2021. According to Sotheby's, it is estimated to fetch between $2.5 million and $5 million. The actor described the watch as "the most complicated wristwatch ever made" and emphasized its pristine condition, stating it has "never been touched by human hands."

Another notable item in the auction is a bronze and titanium Luminor Submersible 1950 watch, worn by Stallone in the 2011 film "The Expendables 2", estimated to sell for between $30,000 and $60,000. Additionally, a pink gold Audemars Piguet Royal Oak Tourbillon '50th Anniversary' watch is estimated at $100,000 to $200,000.

Luxury watch expert Nico Leonard van der Horst believes the Patek Philippe Grandmaster Chime could sell for significantly more than its estimate, highlighting the rarity and desirability of such a piece. The auction's outcome is anticipated to set a benchmark for the value of this prestigious timepiece.