This pre-owned Breitling Windrider Blackbird Chronograph A4435910/B81 watch is in unworn condition. During our quality control check, any necessary adjustments are made to ensure the watch is functioning as intended. The watch is Crown & Caliber Certified Authentic and comes backed by our 1-year warranty. This Breitling Windrider Blackbird Chronograph A4435910/B81 (Leather bracelet / Stainless Steel bezel / Black dial) Men's watch is in Unworn condition. It is Crown & Caliber Certified Authentic, has undergone any necessary service, and comes backed by our 1-year warranty. Prior to shipment, the watch will undergo a final quality control to ensure it is functioning as intended. If you have questions about this watch, give us a call at (800) 514-3750 and mention reference code: AJL44903.