I wasn't aware that this watch was 'plated' with ceramic, I thought it was solid. If this was your perception too- contact your dealer and express your disappointment, and he may just have you paypal him 30 USD for a replacement (happened to me twice under similar circumstances). Otherwise, and this is just an unproven idea- buy some JB Weld, form it to the chip quickly and shape it flush, let dry and wet-sand if necessary, then paint chip with ceramic white appliance touch-up paint. Here is a dealer who has one similar for $77 shipped (on the slow boat), maybe that would be easier.
http://www.houseofsouvenirs.com/index.htm
It's not ceramic, but it looks like it. Description says 'quartz' but my wife's sweeps smooth...
Good luck, Arty