Model 3133 / 31679 MOON PHASE / 31682 24hrs Display

Below: Lineage of the Poljot 3133 & 3017
(Article by Chris Barber, aviator-watch.com Canada)

Caliber 31 mm built similar to Valjoux cal. 7734
21 600 half-oscillations
Height 7.35 mm
Side second hand
Date-of-the month calendar
Stopwatch: summing-up action
Sweep-type hand of second counter
Side-hand of minute counter
30-min capacity of minute counter scale
23 Ruby jewels
Balance period 0,33(3) sec
Mean daily rate from -10 to +20 sec/day
43-64 h winding (with stopwatch turned off)

The POLJOT watch is a first quality product with a 23 ruby movement
comprising of the additive timer, calendar display, and anti-shock
equipment. The watch indicates accurate time in hours, minutes, seconds as
well as the day of the month. This watch is aimed at measuring time
intervals within 30 minutes in minutes and seconds.

a/ Winding up the watch
b/ First click-Time and date setting

- Average daily rate at a temperature of±20°C (±5°C) from -2 to +5 sec per day
- Winding the watch completely gives the watch 42 hours of running time
- With minimal care the watch has an average life span of ten years
- Watch-case surface 5 mcac. gold

ATTENTION, PLEASE

1. The Model 3133 movement includes a chronograph timer. This is activated
by pushing the timer button.
2. For stopping the timer it is required to press the timer button once
more.
3. For setting the timer to the zero position it is required to press the
reset timer button.
4. The timer is intended solely for measuring short time intervals.
5. CAUTION: Pressing the reset timer button while the timer is running
will cause a failure of the mechanism!
5. Use timer 30min max ! It is not made to run all the time - your watch will gain or loose time!

How to Use Your Watch

1. Your watch will serve you reliably assuming you diligently follow our
advice:
-Regularly winding up your watch once per 24 hours (recommended in the
morning) until you feel resistance.
- Protect your watch against falling, extreme shocks, strong magnetic
field, water and the effects of harsh chemicals.
2. To maintain the high accuracy of your watch it is necessary to have it
services regularly. Have it cleaned, lubricated and adjusted by a
qualified watch repairman every two or three years..
3. Avoid exposing your watch to sudden changes of temperature to prevent
sweating under the watch-glass.
4. For setting the hour and minute hands it is necessary to pull the crown
out softly from the watch-case. Once the crown is in this position, you
simply turn it clockwise or anti-clockwise to adjust the hour and minute.
Once completed, simply push the crown back in.
5. For setting the date display it is required to get the crown to the
"time setting" position
and turn the hands in the clockwise direction until the change of the date
and until the hands reach the point "01.00 hours".
In the case of the need it is possible to shift the date by several days back through turning the crown in the reverse direction until the point "10.00 hours" and then back in the clock-wise direction to the point "01.00 hours" For any cycles of shifting the hands within the time interval from 01.00-10.00-01.00 hours, the date is changed by one day.
6. For starting and stopping the timer it is required to press the timer
button. Returning the timer to its starting (zero) position is done via
pressing the reset timer button after stopping the timer with the timer
button.
7. For the addition of timer intervals after every stopping it is required
to launch it again and stop the timer with the timer button.

8. To set the phase of the Moon : the watch crown should be brought to the position of dale-setting and then the phase of the Moon is set. When it reaches the right size, you should set the time and return the watch crown.
Note: when moving the hands past midnight, the date will change automatically. Thus, it should be adjusted together with the Moonphase setting.

31679 MOON PHASE / 31682 24hrs(day&night) Display Pictures from poljot.ru

Lineage of the Poljot 3133 & 3017

The story of Poljot chronographs is a long and rather complicated one.
Information is hard to come by and often in other languages. Translations
are not always perfect, leaving gaps to be filled in by ones own logic. So
before we begin this investigation, please recognize that this is a work in
progress and there is bound to be a few factual errors.

The lineage of both Poljot Chronograph movements can be traced back to the
Swiss Venus cal. 150.

The Venus 150 is a traditional castle wheel chronograph. The beat rate is
18,000 A/h and has 17 jewels. The chronograph register is probably 45
minutes (see Notes). Size is 13 lignes. Although I was not able to pin down
exact production dates, there are historical notes of this caliber being
used before WWII and up until the 1960's.

The Venus caliber's directly derived from the base cal. 150 are the 152,
175, and 178. Unlike Valjoux, there are almost no noticeable variation in
physical construction. The major difference is size and the presence or
absence of the hour register. The 150 & 152 are 13 lignes; the 175 & 178 are
14 lignes. The 150 & 175 have no hour register whereas the 152 & 178 have
one.

Beginning in 1959, 1MWF began producing the 3017 castle wheel chronograph.
The beat rate is 18,000 A/h and has 19 jewels. It has a single 45 minute
chronograph register. The size is 13 lignes. The size is particularly
important to note as it eliminates the Venus 175 as a possible base. The 178
is also eliminated because in addition to being too big, it also has the
additional (hour) register. The 152, though being the correct size, has the
additional register as well. This leave only one possibility, the Venus cal.
150.

Around 1966, Venus offered Poljot the tooling and license for their cal.
175. They refused this offer, however, because they had already been
producing the practically identical cal. 150 for seven years.

At date unknown, Venus converted their cal. 175 from castle wheel to cam.
This movement was designated the cal. 188. The new movement was 14 lignes,
had a 18,000 A/h rate and possessed 17 jewels.

This Venus movement would then go on to form the base for the Valjoux cal.
7730. The cal. 188 is the first movement to show a vary particular style of
chronograph activation levers. This style is then repeated in the Valjoux
7730. Beginning with the 7733, the levers retain their characteristic base
but split midway. Many older Poljot 3133 have the identical split activation
levers. The 7734, however, has a single, wide lever. The same Venus 188
style base, however, is retained. From this point onward, all the movements
are 14 lignes.

In 1973, the quartz crisis was in full swing. Movements manufactures were
dropping left and right. Valjoux, in an attempt to compete, developed the
cal. 7750. This was an automatic winding chronograph. Hard pressed to
increase cash flow, they discontinues scores of movements intending to
replace them with the new 7750. Desperate to unload the tooling of the late
7730, they offered it to Poljot. Their offer was refused. It seems Poljot
didn't want the low yielding, ancient 7730 equipment. (It was later sold to
an Indian firm.)

The following year, 1974, Valjoux discontinued their 7734 as well. Once
again, desperate to unload the tooling they turn to Poljot. This time they
accept. It has been suggested that out of work Venus technicians were
actually dispatched to Moscow to help with the hand over. Unfortunately, it
is impossible to determine the validity of this.

Poljot made several modifications to the movement. The most noticeable are
the new balance wheel and the addition of six jewels, bringing it up to 23.
It is also interesting to note that several of the jewels are functional on
both sides -- acting as two jewels. This brings the theoretical jewel count
up to around 31. Variations are also readily observable in the chronograph
activation levers. It should be noted, however, that the base of the levers
is identical to those on the Venus cal. 188. Other modifications include the
31659 hacking variant produced in small quantities beginning in 1976. The
Poljot cal. 3133 was not made available to the general public until 1983.
Since then, the P3133 has had several complication variants (31679, 31682).
The P3133 sans chronograph unit is also currently marketed as the P3105(see
Notes).

Notes:

- The photograph I saw of a Venus cal. 150 watch had a 45 minute dial but a
description classifying it as a 30 minute chronograph.

- The official web page of 1MWF, poljot.ru, lists the 17 jewel base unit of
the 3133 as 2614. This, however, contradicts their own nomenclature.