Need Help in OMEGA Speedmaster Reduced 3510.50 crystal

Hello all,

I recently purchased a Speedy Reduced 3510.50 from my friend, the watch crystal is not original and I would like to source a original one.

May I know which part number I should looking for ?

I have two links below, are they the right one I am looking for?

Thank you very much for your time, I really love this watch! I have a small 6inch wrist and I feel this watch is perfect size for me.

Wish all you guys have a wonderful weekend! Thank you

http://www.ebay.com/itm/Original-OM...102063?hash=item1ec223252f:g:1fwAAOSwfVpYr5xj

http://www.ebay.com/itm/NOS-OMEGA-C...74-SPEEDMASTER-REDUCED-175-0033-/162455521596

Thank you Sir! Already got one off ebay this morning per your info, thank you so much!!

Since my bezel got some serious dents, I am also thinking to change a new bezel as well.

I found this item below, however, I am not sure is this really from Omega or not, the packaging looks a bit off to me...

May I have some advise from you guys? Thanks!

http://www.ebay.com/itm/262928164942?ul_noapp=true