====== DeWitt Academia Tourbillon Force Constante ======
{{wst>image_cr|DeWitt|Academia Tourbillon Force Constante}}

**Academia Tourbillon Force Constante** is a wristwatch by [[DeWitt]].

==== Info ====
In the spring of [[2006]] Jérôme de Witt presented at the [[Baselworld]] this extraordinary luxury watch with [[tourbillon]]. It is equipped with the patented [[manual winding]] [[manufacture]] movement DW 8003, which was newly developed in collaboration with [[BNB]].

The term "[[force constante]]" refers to a novel [[escapement]] system in which the driving force of the [[mainspring]] is held continuously equal during the entire running time. This is not the case with the usual watch concept, because the mainspring - especially for watches with [[manual winding]] -, when fully wound, is tightly stretched and then provides a much higher energy than at the end of the running time. In contrast, the [[escapement]] concept which is introduced here gets the energy of the [[barrel]] only once per second and sends it to the [[tourbillon]] every 10 seconds.

This process of dosed force transmission can be followed through a dial aperture where a cross-shaped inertial element with four hammers performs six revolutions per minute.


<WRAP ud ud_mod>

**Movement: **
  * [[Manual winding]] [[manufacture]] movement DW 8003, 21,600 A/h
  * [[Tourbillon]] movement with patented regulation system 
  * 26 [[jewels]]
  * [[Plate]] and [[bridge]]s with [[Côtes de Genève]]
  * Power reserve 72 h

**Case:**
  * [[Platinum]]
  * Ø 43.0 mm, H ? mm
  * [[Bezel]] and middle section with the exklusive decor //Colonnes Impériales//
  * [[Sapphire crystal]]
  * Screwed [[platinum]] [[sapphire crystal]] caseback
  * [[Waterproof]] to 30 m

**Dial:**
  * Anthracitegrau, rote Reliefs
  * [[Skeletonized]] hours and minutes indication in the upper half of the dial
  * Aperture above the mechanism for constant force transfer at the "8"
  * Aperture above the tourbillon cage at the "5"

**Functions:**
  * Hours, minutes

**Bracelet: **
  * Grey Alligator strap with [[folding clasp]] in [[platinum]]

**Price:**
  * Around $100,000 - $250,000 depending on model

**Limited edition:**
  * 250 pieces
</WRAP>
===== Video =====
  * [[DeWitt Academia Tourbillon Force Constante Video]], 4 32


{{tag>Watch_models Watches_with_tourbillon DeWitt_models}}