Is this what you are looking for?

http://rinkya.com/twview.pl?URL=http://page6.auctions.yahoo.co.jp/jp/auction/f23260707

You can use a deputy service to bid on it, in case
you aren't familiar with buying on YJ.  Some of
them are :

http://www.rinkya.com
http://www.animechaos.com
http://www.celga.com
http://www.hobbyshopk.com/

With the top two you have the ability to bid
yourself, the bottom two you put in a maximum bid
with them and they bid for you.  You have to
register with these places so do that in advance
before you bid on an auction.

If you aren't too sure what the text says you can
translate it here :
http://babelfish.altavista.com/

You can go have a look yourself by using the links
here :
http://rinkya.com/yj.php?searchstring=full+metal+alchemist

There are a couple more watches on there but I
don't think they are the real ones so be careful
what you buy isn't a fake.

Hope that helps ::)