for your PAM50. Go to Panerai's website and look up the closest AD/Boutique in your area.
Since your Luminor is a 40mm, all you need to tell them is that you want a 22mm black rubber strap. And you'll also need to a 20mm buckle for the strap as well if you don't have an extra buckle.
Cheers,
Anthony
This message has been edited by AnthonyTsai on 2011-03-27 09:58:24