Holding thread for Russian movement archive

[tomshep]

First up, for no particular reason, Slava 21 jewel manual movement with quick change date function. Instantly recognisable as a Slava because there are two mainspring wheels, one either side of the click. The use of two mainsprings is to allow the springs to be thinner and therefore exert a more constant torque upon the movement, leading in turn to a more even rate (allegedly!) Soviet era, The SU is stamped on the plate between the balance cock and one of the train bridges.

[tomshep]

Slava 26 jewel manual wind day/date Again, dual mainspring and date advance pusher which, although common on Slavas can also be found on Poljot models.

[tomshep]

Slava 27 jewel automatic day/date with advance button.
(Sharp eyed viewers will see a broken winding idler which means that it is a good job it is an auto! )