Those running charity shops might want to check incoming items a bit more carefully after an Arizona man bought an old watch for $6 at a Goodwill thrift shop and then got $35,000, plus a $4,000 Omega watch for it from a collector.

The antique timepiece was a rare 1959 Jaeger-LeCoutre divers model and only 900 were ever made. Lucky customer Zach Norris bought it because he recognised the brand name but only found out its high value when he advertised it on a specialist website.

Reportedly Norris is using his windfall to pay for his wedding, and to make a donation to Goodwill.