A ladies watch was stolen from a house in West Villa Road in Wellingborough.
The Guess rose gold watch was taken some time between 9.45am and 11.15pm on Friday (November 25) when thieves forced their way into the kitchen and took the watch from a windowsill.
Police are reminding people not to leave valuables on display, particularly in the run-up to Christmas.
Officers would like to speak to anyone who may have been offered the watch (pictured) for sale.
Witnesses or anyone with information about this incident can contact police on 101 or Crimestoppers anonymously on 0800 555111.