====== Poljot 3133 ======
The [[Poljot]] **3133** is a [[manual winding]] [[chronograph]] movement produced since the 1980's.

Introduced in the 1970's but not generally available until [[1983]], Calibre 3133 includes elements of earlier [[Venus]] movements, notably the [[Venus 150]], [[Venus 188]], and [[Valjoux 7734]]. It is not a copy or clone of these movements, but Poljot did purchase machinery and tooling and adapt elements of these calibres into the evolving 3133 design.

The Poljot 3133 is a cam controlled [[chronograph]] operating at 21,600 A/h. It has a 30 minute counter at 3 00, a [[small seconds]] dial at 9 00, and a central sweep seconds counter along with the hour and minute hands. A date window is located at 6 00. Two buttons control the chronograph functions The 2 00 [[pusher]] for starting and stopping the chronograph, and the 4 00 pusher to reset the seconds and minute counters. Calibre 3133 is nominally a 23 jewel movement, but several jewels are used on both sides, allowing some to claim 31 jewels.

This is quite different from the Venus and Valjoux calibres with which it shares components and design elements. Those are slow 18,000 A/h movements with fewer jewels (17). The Swiss movements use an entirely different assortment (balance and escapement) and has many differences in the bridges and levers. But many others are identical between the movements. The movements are not interchangeable either, since the dial feet are located differently, and the movement is 1 mm thicker. Interestingly, the date wheel on the Poljot advances clockwise like modern ETA movements, while older Venus calbres used counter-clockwise date wheels.

There are a few variants on the basic Poljot design. Calibres **31679** (with [[moon phase]] hand) and **31682** (with day/night display) include extra complications. The 17 jewel calibre **3105** lacks the chronograph functions and simply has [[sub seconds]] at 9 00 and date window at 3 00.

===== External Links =====
  * [[http://orologi.forumfree.it/?t=5824777|breve storia del cronografo russo: Venus , Valjoux , Poljot]]
  * [[http://forums.watchuseek.com/f54/poljot-3133-vs-valjoux-7734-lysanderxii-224306.html|Poljot 3133 vs. Valjoux 7734 (by Lysanderxii)]]


<WRAP ud ud_mov>

**Description:**
  * [[Hand winding]] [[cam switching]] [[chronograph]]

**Functions:**
  * Hours, minutes
  * [[Small seconds]] at 9 00
  * 30-minutes counter at 3 00
  * Date at 6 00

**Data:**
  * 14 [[ligne]]s
  * D 31 mm, H 7.35 mm
  * 23 [[jewels]]
  * 21,600 A/h
  * Power reserve 51 Hours

**Production period:**
  * 1970's-Present
</WRAP>

{{tag>Movements Manual_winding_movements Chronograph_movements}}