This is a 1970s Tressa Automatic wristwatch with an Incabloc 25 jewel movement and date function, serial number 81272. I purchased it in the autumn of 2016 and had it fully serviced by my watchmaker. This watch keeps incredibly accurate time and is very sturdy, in spite of its currently low market price. It has about a 2-day power reserve. The date can also be adjusted separately from the time, once again pretty surprising for a watch of its price. The elastic metal band is also very nice, although it’s a bit tight for my wrist.