Here is a beautiful example of early quartz watches, this one dates from the middle of the 70’s.
On watch is all original including bracelet, all stainless steel made, watch dial is very difficult to photograph in full beauty, because, depending on the light it varies from blue to almost black, that together with the glass that is like a diamond makes this watch really attractive.
Movement ESA 9183 belongs to the early quartz movements, it is very high quality made and works very precisely.
It is interesting to note that there are numbers from 1 to 12 on the battery cover, which represents the months of the year. When you change the battery you turn a number of month on battery cover towards the triangle and so you know when it was last replaced.