Did you witness a robbery near the BP garage in Bursledon Road at around 1am on Saturday (11 February)?
A man in his 30s had got out of a taxi nearby and was walking to the garage when he was attacked by three men.
One of them hit him on the head with a hammer, leaving him with a head wound that needed seven stitches.
His Tag Huer Aquaracer watch was stolen.
The men are described as aged 20 to 30, White, around 5ft 6ins to 5ft 10ins tall, slim to medium build with dark cropped hair and a short skin fade on the sides. All three were wearing sportswear.
Inspector Stuart Baker from the Southampton East Neighbourhoods Policing Team said: “This was an unprovoked attack on a member of the public and will understandably cause concern in the community.
“We have stepped up patrols in the area and are working hard to identify those involved.
“You can help us – so if you saw what happened or have any footage that shows the moments before or after – whether that is mobile, dash cam or CCTV – or know who the men involved were, please get in touch.”
Call us on 101 or report online, quoting 44230058362. You can also report anonymously via Crimestoppers on 0800 555 111 or by visiting their website.