I need a new band for model 5509 who sell - Invicta Mens 5509 Subaqua Sport Blue Ion-Plated Chronograph Watch

Did you already check online?

Most stores that sell the watch also sell the bands. Or plug the model number into your search engine and buy one online. Spend time making sure it is the correct band as there are many different models and they are not interchangable.

Most department and discount stores that sell Casio watches will carry a general assortment of replacement bands for those watches. However, your model takes a somewhat specialized band that may not be stocked by these stores. Instead, if you're looking for a local source for a replacement band, you might need to visit a "quick watch repair" kiosk or store in your local shopping mall or visit a jeweler who sells Casio watches. Often, both of these types of businesses keep a more comprehensive selection of authentic Casio bands in stock.

Replacement bands are also available online. For example, just because it was near the top of the Google search results I received, this web site has a wide variety of Casio bands, along with suggestions of the watch models to which they go. I have not ordered from this web site, and I have no affiliation with them (I actually think some of their prices are on the high side), but it's one of many online sources for the watch band you need:

http://www.casiosalesandservice.com/istar.asp?a=3&dept=cwband

Good luck finding the band you need at a decent price!

Concord is part of the Movado group. They do not sell replacement parts to just anyone. So if you want an original band you will need to take it to an Authorized Movado/Concord retailer. Or if you wanted to save some money you can take it to a watch repair business that sells and replaces watch bands. Speidel makes some really nice watch bands.

http://www.concord.ch/servicelocator/index.php

that part is called a Keeper and not easily available ...the company that manufactures the bands does not sell it separately so you would have to buy the complete band to get it...or you could try to find somewhere that would sell you a clean used one...good luck

You can order a replacement band from www.razorreef.com they sell for 17.99