Hi David without pictures it's really hard to tell.
Let's say that a median value with perfect dial, good hands, normal wear on case,pushers and crown an without bracelet can be round 900 EUR.
Then it's all depending on the conditions, also for the bracelet.
I've seen badly shaped ones go for as low as 600 EUR and mint for 1800, so te fork is really wide.
Do try to add some pics and the ballpark can be narrowed.
Cheers
Fabrizio

: Gentlemen:

: I'm not a sophisticated collector however I found this site which
: appears to be one site to post my question. My question is what
: is my used lightly worn Heuer 510.501 (Black) is worth if I were
: to sell it. I am the original owner and it has been packed away
: probably 25 years without wearing. It has some wear on the case
: minor in nature. The wrist band has one metal link that needs a
: professional to repair, but other than that it is in very good
: shape. It still runs perfectly. I long ago disposed of the box,
: paperwork etc. that came with the watch. The face is in perfect
: condtion in my opinion but the glass has a few minor scratches.
: As best I recall I bought it thru Sharper Image back in the
: early 80's.

: I know it's difficult without photos to do a really good valuation
: but depending on your ballpark ideas I can then see if I need to
: put in the addtional effort to pin the number down even further.

: Your assitance and advice is much appreciated.

: Thank you

: Dave Harpole