To clean:
Use a solution of lukewarm soap water. With a soft toothbrush gently brush the bracelet and the charms with the solution and rinse in clean water before drying with a lint free cloth.
To remove caked on dirt, first immerse the item in lukewarm soap water for a few minutes before brushing, rinsing and drying with a lint free cloth.
WARNING: DO NOT USE CLEANING AGENTS OR EXPOSE TO CHEMICALS
To maintain that just bought look, avoid the use of cleaning agents and any chemicals. Oxidized silver, glass etc. can be easily tarnished or even irreparably damaged if not treated gently.