The Precista PRS-3 bracelet is 22mm wide, the older Broadarrow PRS3 is 20mm wide.
Your choices are:
£6 mesh from Ebay
http://www.ebay.co.uk/itm/271930362687?var=570767446041
An after market cheapy from Cousins with pressed end links
Or the $88-$98 Parnis tapering bracelet (about £50-£60 once you log in for an automatic discount)
It comes with a free watch, but you will need to remove about 1mm of metal from the curved solid end links to make it fit the Broadarrow.
http://www.manbuworld.com/c/automatic_0373?&Sort=5a
I used a Black Parnis bracelet on my PRS4 for 5-years and it was comfy and solidly built.
It even had a half link divers extension built in.
They have polished centre links.