Citizen Eco-Drive Chronograph Power Reserve Radio-Controlled AT8156-87A Men's Watch
Amazon.com: Citizen Men's Eco-Drive Sport Luxury World Chronograph Atomic Time Keeping Watch in Stainless Steel with Blue Polyurethane strap, Blue Dial (Model: AT8020-03L) : Clothing, Shoes & Jewelry
How to find the USER MANUAL (setting instructions) for any Citizen watch? - YouTube