Police are appealing to identify the suspect pictured after a watch was stolen from an elderly man in Littlehampton.
The victim - aged 77 - was reportedly approached on Wednesday 16 June by a woman who gave him a hug and took his watch.
The watch is believed to be worth around £15,000.
Officers are keen to speak with the woman pictured who they believe may be able to assist with enquiries.
Detective Constable Jamie Carruthers said: "We have received several reports of thefts and attempted thefts of high value watches in the West Sussex area recently.
"We believe that various individuals are responsible for these thefts.
"We are urging residents to be vigilant if approached by a stranger and urge anyone who witnesses any suspicious behaviour to come forwards."
Anyone with information is can report online or call 101, quoting Operation Overdrive.
You can also contact the independent charity Crimestoppers anonymously on 0800 555 111.
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