Time elapsed for watch with crystal normal or parallel to g

[Loren Booda]

What is the approximate fractional difference in time measured between a quartz watch crystal resonating either normally or parallelly to Earth's surface gravitation?

 

[Mentz114]

Quartz is an extremely stiff material and will deform very little in the Earth's weak gravity. I doubt if the difference would be measurable except under the most stringent lab conditions.

 

[Loren Booda]

I was thinking more in the way of an experimental test of general relativity which affects the simplified quantum mechanics, thus timing, of such a device. One could also orient a cesium clock in these relative positions.

 

[Mentz114]

In my opinion, the orientation of a caesium clock will not affect its time keeping. The standard is based on measuring the frequency of light given by a certain energy transition of a Caesium atom. The direction of emission is random, although a photon 'falling' will have a higher frequency than one 'rising'. This experiment has already been done. All of this you know, of course.