Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Chronotech CT.7930LS
Product feature: ASIN: B00GSUEV74, Date first listed on Amazon: November 20, 2013, Average Customer Review: 4.0 out of 5 stars 1 customer review
Product brand: Chronotech
Target attributes: Mechanical Movement
Answer: attribute: mechanical movement
value: None
source: None