It is currently 15 Dec 2019, 11:12


Russian Lady's watch w/ perpetual calendar

  • Author
  • Message
Offline
User avatar

Andrew Babanin

Techie

Techie

  • Posts: 112
  • Joined: 08 Jun 2015, 16:23
  • Location: Moscow, Russia

Russian Lady's watch w/ perpetual calendar

Post18 Jan 2016, 23:21

There's a quite rare watch, based on the experimental module, with diameter 26 mm, looks a bit common to 2651 - mass LED module, produced in USSR, but with no two buttons. Three other buttons are on their own places. When you choose the month the one more digit is displayed before months - from 0 to 3 - means years with leap year.

I compared it with mass gold plated Elektronika 1, produced in November 1976:

Image

Image

display allows to show letters (9 elements instead of common 7)

Image

Compared with Gents model, based on 3051 module

Image

The pics of module:
there are no inscriptions and serials - ceramic plate is fixed on the plastic base. According to cylindric quartz popular in USSR in the mid of 80-s I can suppose that this watch from the mid of 80s.

Image

Image

Here's a pic of ordinary ceramic 2651

Image
Last edited by Andrew Babanin on 17 Nov 2019, 00:55, edited 1 time in total.
The proof of the pudding is in the eating...
Offline
User avatar

Kasper

Guru

Guru

  • Posts: 2387
  • Joined: 25 Aug 2011, 10:25
  • Location: Belgium

Re: Russian Lady's watch w/ perpetual calendar

Post20 Jan 2016, 12:10

wow...nice. Never seen before.

Great shot btw.
Hey you all...this board is FREE and without ADS, so at least post something every now and then to show your appreciation.


Get the latest active topics of the board here.
http://www.newdwf.com/search.php?search_id=active_topics

- Kasper -
Offline
User avatar

dutchsiberia

Techno Mage

Techno Mage

  • Posts: 635
  • Joined: 23 Dec 2011, 00:25
  • Location: Grootegast, Netherlands

Re: Russian Lady's watch w/ perpetual calendar

Post29 Jan 2016, 15:53

I agree, great pictures of again a super rare watch, you've got very interesting stuff :-D
Offline
User avatar

Andrew Babanin

Techie

Techie

  • Posts: 112
  • Joined: 08 Jun 2015, 16:23
  • Location: Moscow, Russia

Re: Russian Lady's watch w/ perpetual calendar

Post07 Dec 2017, 07:48

I found a few very interesting details about this watch. This module had to be called as B6-302, and it was mentioned in technical literature in August 1978. The main thing of this chip - is digital correction of accuracy. It very common to Synchronar system - the same range of correction - 0-799 but only 23 points (not 46 for Ragen) to correct 1 second per day. Later i found instruction for pen watch Elektronika 1. It is mentioned, how to adjust perpetual calendar for December 1977. So I guess, the chip produced in the beginning (mid) of 1977. The normal russian Elektronika has a chip with frequency divisor for 512 and 256 Hz, decoder and controller. For digits there were two assemblies with transistors - one with 7 ones - for segments and one for 4 ones - for digits. Information is sent in 4 cycles. This chip has only 4 transistors in assembly in key mode.
Very interesting point that there was Qualitron watch pen in the box.
Here it is

Image

Here i put scans of instruction for watch pen in russian with digital correction and perpetual calendar and days of week

http://www.horology.ru/TZ/ele416.jpg
http://www.horology.ru/TZ/ele417.jpg

Very interesting when Ragen started digital correction of accuracy.
Last edited by Andrew Babanin on 11 Mar 2019, 23:50, edited 1 time in total.
The proof of the pudding is in the eating...
Offline
User avatar

Andrew Babanin

Techie

Techie

  • Posts: 112
  • Joined: 08 Jun 2015, 16:23
  • Location: Moscow, Russia

Re: Russian Lady's watch w/ perpetual calendar

Post07 Dec 2017, 08:01

here a fer macros of usual chip and assemblies for russian led watch

A chip, with 1979 mark

Image

two assemblies for four, seven transistors, also assembly of 3 resistors

Image
The proof of the pudding is in the eating...
Offline
User avatar

Andrew Babanin

Techie

Techie

  • Posts: 112
  • Joined: 08 Jun 2015, 16:23
  • Location: Moscow, Russia

Re: Russian Lady's watch w/ perpetual calendar

Post07 Dec 2017, 08:11

Also I found two cases for module B6-302, I dated them as mid of 80s, not earlier than 1984, so these modules with this chip could be under production at least for 7 years . Unfortunately I have got the only known module B6-302, so it is tricky to analyse it.

Image

Image
The proof of the pudding is in the eating...
Offline
User avatar

Kasper

Guru

Guru

  • Posts: 2387
  • Joined: 25 Aug 2011, 10:25
  • Location: Belgium

Re: Russian Lady's watch w/ perpetual calendar

Post13 Dec 2017, 20:15

interesting read..thx Andrew
Hey you all...this board is FREE and without ADS, so at least post something every now and then to show your appreciation.


Get the latest active topics of the board here.
http://www.newdwf.com/search.php?search_id=active_topics

- Kasper -
Offline
User avatar

Andrew Babanin

Techie

Techie

  • Posts: 112
  • Joined: 08 Jun 2015, 16:23
  • Location: Moscow, Russia

Re: Russian Lady's watch w/ perpetual calendar

Post08 Mar 2019, 17:09

One more proto watch in the collection. Driver's led watch, based on the same chip, like in ladies watch - also perpetual calendar and days of week in russian. Sorry, on Seiko bracelet :)

Image

Image

Image

On the wrist

Image

Image

Pulsar (Moscow) museum photo

Image
The proof of the pudding is in the eating...
Offline
User avatar

Andrew Babanin

Techie

Techie

  • Posts: 112
  • Joined: 08 Jun 2015, 16:23
  • Location: Moscow, Russia

Re: Russian Lady's watch w/ perpetual calendar

Post11 Mar 2019, 12:57

Small addition to Driver watch - a small pic of module (upper part). I forgot to photoghraph it, so only this is available

Image

To continue theme of russian experimental watches with full calendar i would like to share with pics of russian led watch pens.
Previously i put some info about this pen. For now pics alive. The pens are a bit different. In one clip is aside in other one - from the back side. Besides cromed one has russian calendar, gold plated - in english.

Image

In comparison with Qualitron led watch pen

Image

With original papers

Image

Seconds

Image

Hours and minutes

Image

Day of week. I would remind that you can choose one of four years during time setting. So it is perpetual calendar.

Image

Module

Image

Image

There's the same chip like in driver watch. It looks perfect - one block with lens.

Image

Image

All wires ale soldered by hand and for sure these pens are just working samples.
Last edited by Andrew Babanin on 11 Mar 2019, 23:53, edited 1 time in total.
The proof of the pudding is in the eating...
Offline
User avatar

Pulsar77

Techie

Techie

  • Posts: 160
  • Joined: 14 Jan 2017, 16:58
  • Location: Norway

Re: Russian Lady's watch w/ perpetual calendar

Post11 Mar 2019, 20:15

Waow ! Fantastic research work. :eek:
Digital LCD & LED watches fan
Offline
User avatar

Andrew Babanin

Techie

Techie

  • Posts: 112
  • Joined: 08 Jun 2015, 16:23
  • Location: Moscow, Russia

Re: Russian Lady's watch w/ perpetual calendar

Post21 Aug 2019, 02:23

For this one no idea - twin watch LED&LCD. Only wrecks...

Image

Image

Image

Image

Image

Image
The proof of the pudding is in the eating...
Offline
User avatar

funkyguy

Wizard

Wizard

  • Posts: 407
  • Joined: 12 Apr 2008, 20:09
  • Location: London Essex

Re: Russian Lady's watch w/ perpetual calendar

Post18 Oct 2019, 16:47

Stunning again Andrew, thank.you for sharing. If only that could be on my wrist.
There's rare watches. Then there's unique watches. That's totally unique indeed.
FG

Image
Funkguy
Offline
User avatar

Led-Time

Guru

Guru

  • Posts: 969
  • Joined: 05 Jun 2005, 00:28
  • Location: Scotland

Re: Russian Lady's watch w/ perpetual calendar

Post23 Oct 2019, 00:13

I love the rough construction of the pen it looks like someone made it at home.

Great stuff...its very nice to see LED's from a source outwith the west.
Offline
User avatar

Andrew Babanin

Techie

Techie

  • Posts: 112
  • Joined: 08 Jun 2015, 16:23
  • Location: Moscow, Russia

Re: Russian Lady's watch w/ perpetual calendar

Post17 Nov 2019, 00:15

Hybrid watches with led and lcd visualization. Approx 1987-1991. No idea for reasons, we all know that all these experiments are finished in mid of 1970th. There is only square version with module, other versions with no module. I've made moulages.

Image

Image

Image
The proof of the pudding is in the eating...

Return to All other LED watches

Who is online

Users browsing this forum: No registered users and 1 guest