Michael MacCready, 82, left his home address at 6.20am on Saturday 20 July 2024 and caught a train into London, where he is last believed to have been in the Tottenham area.
Officers have released a doorbell camera image of Michael showing the black fleece top he was wearing. He also had black tracksuit bottoms and leather slip-on Skechers shoes.
Michael is described as being around 5 foot and 7 inches, slim with white hair, and may appear confused.
Anyone who sees him or knows where he is should call 999 quoting reference 20-1502.
