FC-255 32.7680K-AG0 FC-255 32.7680K-AG3 FC-255 32.7680K-AG5 FC-255 32.7680K-B FC-255 32.7680K-E FC-255 32.7680K-E3 FC-255 32.7680KF-A5 FC-255 32.768K FC-255 32.768KHZ FC-255 32.768KHZ/12.5PF/20PPM