Case material: Rose gold; Charge: Automatic; Conditions: Never worn Presentation condition : With dealer guarantee ; Model: El Primero Price on request Gmtbroker Reference: 85.2060.405/23.c714 Zenith 85.2060.405/23.c714 Complete Details: This watch features: Black ALCHRON and 18kt rose gold case with fine brushed finished edges & lugs. ALCHRON is a high-tech alloy used in the aeronautical industry that is highly resistant to corrosion. Alligator Leather strap lined with a Rubber protection. Flat black dial with contrasting metallic black sub-dials. Faceted polished rose gold hands with partial luminous fill Applied polished rose gold faceted indexes hour markers with luminous fill. The Famous El Primero Chronograph stop/watch: Features a "Flyback" function, which allows instant restarting of the chronograph with a single push of the button instead of the need to stop, reset & then restart the stop-watch. 30 minute sub-dial counter located at the 3 o'clock position. 12 hour sub-dial counter located at the 6 o'clock position. Running seconds sub-dial located at the 9 o'clock position. Date display window located at the 6 o'clock position. Zenith El Primero Caliber 405 B, beats at 36,600 vph, 31 Jewels, 331 components & an approximate power reserve of 50 hours. Featured Complications: Chronograph This watch is also known as 85206040523c714