Vintage Watch Chronosport Trident Quartz 20 ATM / 660 feet Date Diver SS Case Swiss made. Not working, has not been used for over 25 years. Needs to be serviced. *****I recently changed the battery but no movement. ***

I have not been able to locate info on this watch online, I don't see much for the trident model or this look. I believe it is a mens watch but case is smaller at around 36mm. Manufacture should be between 1980 to 1985. It has some wear see pictures. Number on back is 3123186. Vintage rare unusual.