In the beginning of 80s USSR was not outsider in designing watches. There were quite interesting attempts to make modern and Technically Avant Guard watches.
Cardiomonitor - one of them. Unfortunatedly, the watch hadn't been in mass prroduction, but still a small qty was produced.
In 1981 there was good work done to make new standsard of module in the USSR - two batteries are replaced by one battery movement.
Calibre 30*** for the first time had variant with big display (the only known Elektronika 207 mass produced watch)
http://www.leningrad.su/museum/show_calc.php?n=19There were attempts to make other watches on this form-factor but in vane.
The next generation started in 1982.
Most common are 208 and 209 models
![Image](http://www.horology.ru/TZ/el501.jpg)
![Image](http://forum.watch.ru/attachment.php?attachmentid=242664&d=1333883662)
Cardiomonitor is based on 208-209 formfactor with its own cirquit block and LCD display.
Among other not serial watches
![Image](http://www.horology.ru/TZ/ele106.jpg)
A bit more info about my sample
The cirquit block:
![Image](http://www.horology.ru/TZ/ele044.jpg)
![Image](http://www.horology.ru/TZ/ele045.jpg)
The assembled module with no bipper
![Image](http://www.horology.ru/TZ/ele047.jpg)
In the measuring mode:
![Image](http://www.horology.ru/TZ/ele048.jpg)
Calendar in russian: Month, Date, Day of week
![Image](http://www.horology.ru/TZ/ele049.jpg)
Range of pressure (high, low) - I've chosen myself
![Image](http://www.horology.ru/TZ/ele050.jpg)
![Image](http://www.horology.ru/TZ/ele051.jpg)
Not known for me modes:
![Image](http://www.horology.ru/TZ/ele052.jpg)
![Image](http://www.horology.ru/TZ/ele053.jpg)
The plug to attach measuring elements (pulse and blood pressure)
![Image](http://www.horology.ru/TZ/ele054.jpg)
The case is common to 209 version.
I've met replacement glasses for 208 version of case.
![Image](http://www.horology.ru/TZ/00096.jpg)
It is known, that there were produced microschemes for this watch, there was a number in catalogue for functions (359 - a watch, measuring blood pressure and pulse), but almost no info about the watch itself. For now - the only known watch with this function.
The proof of the pudding is in the eating...