Cera is a girls' name meaning fiery ones".That makes it the perfect tag for a watch made from ceramic, a material fired at very high temperatures to ensure its finish and robustness.The Tissot Cera is a black and white line reminiscent of ebony and ivory piano-keys with sultry black and innocent white elements.The watches are very comfortable to wear and make a confident statement on their wearers� behalf � in this case, the choice really is black and white.