My Golden Shadow Story

Greetings. Allow me to share my Universal Geneve story...and also to post my question. The watch I'm showing here was gifted to me as a new purchase way back in 1988 by my thoughtful wife. It is a Golden Shadow with date, 2 hand model without second hand, apparently a caliber 66 movement. See pictures. Since that time I have worn it occasionally to work and also for some formal dress occasions. Some years back I lost the crown and therefore the watch sat for all this time thereafter not being used. I am now getting back into this hobby and will try to get this piece back to life again. Frankly.....at the time of purchase, I had some knowledge of the better brands of watches such as Rolexes and Omegas, but was totally unaware of the UG brand....it was purchased by my wife solely on the recommendation by our long-standing jeweler. Accordingly, I find myself in the somewhat awkward position to ask people here about details on a watch that I already own !

My first question is this....has anyone seen a model quite like this? I have scoured the net and also this forum and have not come across a dial face quite like this one. Also....the serial number is 060471/1...can someone identify the year it was built? I vaguely recall our jeweler saying the watch was sitting in his inventory for quite some time, at the time of purchase.

Next....can someone recommend a source for the missing crown?. I would dearly love to get this piece cleaned, oiled and operational again, but I would need a crown.

I have all the paperwork and receipts for this watch, so I know what my wife paid for it. I doubt if it has retained its value over the years, but would welcome commentary of today's worth, just as a point of curiosity.

Her are some photos, .....would welcome any commentary.

Thank you very much for the kind reply...... lots of good information and suggestions. Is there a list of models and/or serial numbers available somewhere....that may help to better pinpoint build date?.