Gold Coin Pocketwatch by Shanghai Stop Watch Factory
The spacer was sitting very tight and
therefore I was not taking the risk of damaging it by trying to remove it. The interesting fact about this movement is that it is found in a very large variety of Chinese handwind watches. I am unfortunately not a specialist in Chinese watch movements, but I have found this movement also in the Hongye watch which is according to the case back manufactured by Double Rhomb, the big Beijing watch manufacturer.