Nonimal 12 lignes, but real 11 1/2 lignes is the diameter of this swiss pin lever movement with day-date indication.
more....A very high quality savonette caliber with an elaborate swan neck- and snail regulation and four chatons.
more....In the early 1950s, form movements for ladies' watches were a little bit larger, and from that time is the german DuRoWe 55.
more....Although it is a pin lever movement, it is very well made with 17 jewels and a KIF shock protection.
more....This movement has not only the unusual size of 10 lignes, but also a number of transparent bearing jewels.
more....This rectangular form movement for high quality ladies' watches dates from the 1920s!
more....This version of the "Pobjeda" caliber was made by the First Moscow Watch Factory and bases on the Lip R-26.
more....In the past, especially between 1930 and 1980 more than 10.000 different movements were made, some in a million copies. The advent of the quartz watch in the 1970 terminated that impressive series, and the greatest part of those movements has not existed for a long time.
The movement archive on 17jewels.info, whose origins date back to the year 1997 (under a different name), should counteract further oblivion and show how diverse mechanical movements once were.
Of course it can never show the complete stock of all movements ever made, nevertheless, almost every week, new movements are archived and shown with detailed articles. Currently, more than 1332 different movements found their way into the archive and are at at least virtually accessible to posterity.
You can directly access the movement by the “movements” menu.
Besides the movements there are other pages, which complement the topic “mechanical watches”, such as a collection of Timex watches, some loose articles in the Magazine and Knowledge sections, a few datasheets and some other workbench related articles.
The archive lives from permanently acquiring yet unarchived movements, to catalogue and put them online. Who wants to support it with a small dontion, can get a “supporters” page as thanks.
Have fun exploring the world of mechanical movements!