====== Zenith El Primero Stratos Flyback Black Alchron ======
{{wst>image_cr|Zenith|El Primero Stratos Flyback Black Alchron}}

**El Primero Stratos Flyback Black Alchron** is a wristwatch by [[Zenith]].

Sporty 1/10 seconds [[chronograph]] with [[flyback]] function in black stainless steel case, driven by the well-known automatic calibre [[Zenith El Primero]].


<WRAP ud ud_mod>

**Reference:**
  * 24.2062.405/27.C707
  * 86.2060.405/23.C714 rose gold

**Movement:**
  * [[Self-winding]] [[chronograph]] movement [[Zenith El Primero]] 405 B , 36,000 A/h
  * [[COSC]]-certified [[chronometer]]
  * Ball-bearing [[central rotor]] with »[[Côtes de Genève]]« [[guilloche]]
  * 31 [[jewels]]
  * 326 components
  * [[Power reserve]] &gt; 50 h

**Case:**
  * [[Stainless steel]], black or 18 ct [[rose gold]]
  * D 45.5 mm, H 14.8 mm
  * Domed [[sapphire crystal]] with [[anti-glare treatment]] on both sides
  * [[Turning bezel]]
  * [[Waterproof]] to 10 atm

**Dial:**
  * Black
  * Hour indices and hands with [[Superluminova]], [[faceted]]

**Functions:**
  * Hours, minutes, [[small seconds]]
  * Date at 6 h
  * Central 1/10 seconds [[chronograph]], 60-seconds, 60-minutes [[totaliser]]s
  * [[Flyback]] function

**Bracelet:**
  * Black alligator leather strap with triple [[folding clasp]]
  * Optional metal bracelet with triple [[folding clasp]] or textile strap

**Limitation:**
  * 500 pieces
</WRAP>

{{tag>Watch_models Chronographs Zenith_models}}