So far so good. Only had the winder a few days. Not a heavy or solid item. Steady, well balanced and proportioned though. Common plastic construction you'd expect for the price point. I selected the Diplomat over similar items that look identical because of the 1 year warranty as opposed to 30 days from other sellers. Set up was easy, it runs quietly. My Seiko diver and Tag Aquaracer fit well with the extended face plates included and seem to be wound properly. The watches snap into place with plastic tabs and should not fall out of place when engaged properly. The door closes without touching the watches which was a concern. I 'll give it a month and updater the review if necessary.
Update: 30 months later and the top winder just broke off the screw that holds it to the winding mechanism. Now I need to look for a replacement. I did nave some trouble with the watch holders moving around and making noise as they rotated. Clank, clank...
I added some black duct tape to the holder where it locks into the winder and quiet. The noise was gone.
The winder worked fine from that point on until tonight when it broke.
Is it still 5 stars, well ....I knew this $49 double winder would not last forever. Maybe 30 months is a decent life span.
I'll drop off one star for a short life.