It depends on the model. Some Rolex watches from the 70's could only be worth 1,000 or upwards of $50,000 USD! There is a big market out there for vintage Rolex watches. If you have the original Rolex papers and box that is a major plus to collectors. You could possibly be sitting on a gold mine and not even know it. I suggest taking pictures and going on some forums to see if anyone recognizes it.
How much is my Rolex watch worth
your receipt
$20
Rolex inc is estimated net worth $200.58 Billion not to bad for a watch company...
£1000
1.000.000.000
1.000.000.000
Around $23,000
about $1000 dollars but they might be going down in price
It depends on the model, but most likely between $1,200-$4,500
depends on the model and the age and the condition ebay.com and search...
$3,000 one time i was in las Vegas at ceasars palace i seen a rolex it was $5,595