SMT Crystal Oscillator Teardown

Taking a look at the construction and inner workings of a common SMT ceramic LCC package quartz crystal oscillator from KDS / Daishinku Corporation (株式会社大真空) manufactured in the late 1990s.
The quartz strip resonator measures 4.96 x 2.46 x 0.10 mm, I suspect it is 80 MHz and divided by 2 on the silicon however I don't know what frequency constant to use to confirm this.
REF: WT-YT-V-2

Видео SMT Crystal Oscillator Teardown канала WizardTim