Horology resource website - http://www.nawcc-index.net/

What is Horology? - http://www.nawcc.org/headquarters/ktime/stories/horology.htm

How time works. - http://science.howstuffworks.com/science-vs-myth/everyday-myths/time.htm

Clock and watch escapements - http://www.nawcc-index.net/Escapements.php

What are escapements? - http://www.horologist.com/escapements.htm

What are jewels in a watch? - http://www.breitlingsource.com/articles_roff_jewels.shtml

Automatic Watches: http://www.youtube.com/watch?v=a0ssxHMBPVc

Mechanical Watches: http://www.youtube.com/watch?v=MDYjUDrCPv0

Quartz Watches: http://www.youtube.com/watch?v=1pM6uD8nePo

Atomic Clock: http://www.youtube.com/watch?v=p2BxAu6WZI8

Hey Joe... How Many Parts In A Rolex? http://youtu.be/rMS_sKD_ZqU

Rolex Green Milgauss Review: The Anti-Magnetic Movement Explored - http://www.youtube.com/watch?v=nvodigm0-

XM&feature=share&list=UUGTCiG2x8vWKtWYh0wcZ2nw