If you have an MCU laying around it might be of help, some of them will output the crystal's frequency on one of their pins, like the AT89LP4052.I was looking for some ideas on a circuit to test some crystals i have laying around just plug one in and read it with a counter or my scope.
Pierce oscillator is pretty easy. Which frequency are the crystals?I thought about that been looking at a pierce oscillator. Maybe the uC be the best way to go.
Most modern MM's can read frequencies of up to 20 MHz ... maybe you don't need an oscilloscope at allThere all different most you can't read there value.
I was just thinking about some why to free run them so I fine out manly the watch ones maybe 32768 Hz but they are not marked.