A typical 32.768KHz watch crystal would be: "Quartz tuning fork crystalline piezoelectric resonator without load capacitors."
I kind of liked this one until I got to the point where it said "piezoelectric resonator without
load capacitors", and then I was confused as to whether you were talking about a crystal or
[what some refer to as] a resonator, but luckily I was able to see the "watch crystal" bit - and
then I knew exactly what you meant, ;-). Darn, this is really complicated, and I've never ever
been confused previously, for lo these many years.