In one of my Uncle Mario's bags of modest pieces I found two Chinese "standard movement", aka Tongji. For those that don't know its history, it has been developed as a copy of the Enicar AR 1010, a 17 jewels mov't form the '50s that has been also made in COSC grade. The Chinese began producing it at multiple factories in 1972, and I believe is still made today. I will service both of them, as I'm curious to learn about any difference, if parts interchange, and such small things. Let me pr