Details...

• Character: Lucas Scott
• Actor: Chad Michael Murray
• Show: One Tree Hill
• Episode: 4x03 "Good News for People Who Love Bad News"
• Brand Product : Guess Watch with Brown Leather Bund (square quartz pictured)
• Description: This is the best I could find, similar to Lucas's. I have found similar version with the round quartz, just like his. Another brand who has a very similar model is Fossil, too.