I want to replace the crystal on this piece I bought back in circa 1998. Can anyone help with a part number or direct me to a supplier? It was my daily wearer for about 5 years. I recently installed a battery, put her in the rotation and now I'd like to clean it up a bit as she's scratched and chipped @ 8:00 and 10:00. I believe it's called an Officer's 1884 model.