Antiquorum auctioned off Albert Einstein’s 1930 Longines wristwatch last week. The house estimated the watch would fetch up to $35,000. They got $520,000. (With fees, the total came to $596,000.) That’s over 2000% higher than the estimated price, and a record for any Longines at auction.

The tonneau-shaped watch, made of 14K gold bears the inscription “Prof. Albert Einstein, Los Angeles, Feb. 16, 1931.” According to information from Antiquorum, the timepiece was manufactured by Longines in 1930, and presented to the famous scientist one year later. The white dial bears large gold-colored Arabic figures, a feature doubtless appreciated by Einstein, a sufferer of poor eyesight.