I previously owned the Time Zone Big Date. Ended up selling it when I realized I didn't really want a timezone watch anymore. But it was a good honest watch at a fair price. When I sold it on ebay, the loss was very modest. If you're wondering about the merits of RGM watchmaking, I know of one famous watchmaker who seems to respect their work.
https://www.rgmwatches.com/rgmblog/2...hilippe-dufour