Successful choral directors are typically expert musicians who are accomplished in the field of music. Depending on their employer, directors may be required to have some type of formal training in a related major, such as music or music education.
The term false alarm is actually a misnomer, and is regularly replaced by the term nuisance alarm. When a sensor operates, it is hardly false, and it is usually a true indication of the present state of the sensor.
It had been doing research on electro-mechanical watches since 1952 and filing patents since 1960. The OysterQuartz was the only commercial result of this research, however. The presence of a battery in a Rolex model that is not an OysterQuartz is a telltale sign that the watch is a fake.