====== Fortis B-42 Official Cosmonauts Chronograph ======
{{wst>image_cr|Fortis|B-42 Official Cosmonauts Chronograph}}

**B-42 Official Cosmonauts Chronograph** is a space [[chronograph]] by [[Fortis]].

Successor of the model classic [[Fortis Official Cosmonauts Chronograph]], with enlarged case of 42 mm diameter.

Since the beginning of the European-Russian space mission [[1994]], for the cosmonauts and astronauts an extraordinary ceremony takes place before their start into orbit. Because of its reliability, the crew receives the [[Fortis]] [[automatic]] [[chronograph]] as an official piece of equipment. The [[automatic]] [[chronograph]] movement is wound by the kinetic energy of the bearer and so ensures the independence of battery power - a mechanism that allows a precise measurement of time in emergency situations. With the embossing of their official emblems on the caseback, the Russian Space Agency and the Training Center //Star City// confirm the good quality of the [[chronograph]]s.


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**Reference:**
  * 638.10.11 L with black leather strap
  * 638.10.11 M with steel bracelet Professional brushed
  * 638.10.11 K with [[rubber]] strap black

**Movement: **
  * [[Self-winding]] [[chronograph]] movement [[Valjoux 7750]], 28,800 A/h
  * 25 [[jewels]]
  * [[Precision regulation]], [[Incabloc]] [[shock protection]]
  * Power reserve 50 h

**Case:**
  * [[Stainless steel]], brushed
  * Ø 42.0 mm, H 15 mm
  * Unidirectional rotating black [[bezel]] (60s graduation) with 60 minutes scale
  * Raised dial with [[tachymeter]] scale
  * [[Sapphire crystal]] with [[anti-glare treatment]] on both sides
  * Steel caseback, screwed
  * Caseback embossing with the emblems of the space institutions
  * [[Waterproof]] to 200 m

**Functions:**
  * Hours, minutes, [[small seconds]]
  * Day of week, date
  * [[Hacking seconds]]
  * Chrono function
  * Triangles to illustrate the direction of crown rotation for the quick adjustment of all functions

**Dial:**
  * Black
  * Luminous numerals, indices, hands with [[Superluminova]]

**Bracelet: **
  * [[Stainless steel]] bracelet with [[folding clasp]]
  * Optional leather strap with [[tang-type buckle]] or rubber strap with [[folding clasp]]

**Accessoires:**
  * //Official Cosmonauts Set// Since [[1994]], the set is part of the official equipment of the cosmonauts. The high-quality leather set bears the official emblems on the obverse.
  * Set of equipment watch with steel bracelet, leather strap, Velcro or rubber strap, special tool to change as well as a metal box for storage of accessories.

**Warranty:**
  * 2 years
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===== Literature =====
  * [[Das ZEITGEFÜHL-Uhrenbuch]]; Author [[Gerd-Lothar Reschke]]; ISBN 3-938607-61-0


{{tag>Watch_models Chronographs Fortis_models}}