Diamond Shanghai Mechanical Desk 8 Day Alarm Clock -Working

A mechanical desk 8 day alarm clock made by Shanghai Diamond (Shanghai Zuanshi) most likely in the 1960s or 70s. It has 2 feet and is encased in a wide plastic window. It is 15 Jewels, still winds well, tells time well and the alarm works with a loud ringing sound. The only real issue is that the tab for setting the clock is missing so in order to use it you will need to wind it at the time on the clock face. The metal is brass (it is non magnetic). The clock face is 4" in diameter and the whole piece is 8 1/4" long by 5 1/4" in height.