Cool.
How old are they - are there any interesting stories behind them?
No idea about the individual life stories of mine, other than they are from the cold war era USSR. You can see
Made in USSR on one of them at the bottom. Later ones have
Made in Russia.
Basic but well made, a slightly improved version of an established Swiss design (Cortebert brand), and come with either Cyrillic text for the domestic market, or English for the export market. The most common movement they used is known as the 3602, which came in two incompatible versions (different thicknesses), with some variations on each over the years, and it is a good one for aspiring watch tinkerers to have a crack at.
They were made from 1947 to 2007, and the quality fell a bit after the USSR split and Russia went open market – capitalism doesn't always deliver superior quality, who knew? – but they were still value for the price, and do the job well enough. Old new stock is still around, and there are plenty of 2nd hand ones on eBay, etc. Those three each cost about $65-70 including postage, and are in full working order, though are long overdue for a full disassembly, clean and lube.
They were also rebranded for a few external markets, like Turkey, but are otherwise basically identical.
Russia might not be the flavour of the month in the west right now, but they did make a decent mechanical watch or two during the Soviet era, including wristwatches.
More info here:
http://tuxgraphics.org/~guido/molnija-pocket-watch/