Royal Montres Automatic moonphase watch with central Ruby - Catawiki
c.1965 Swiss Solar Clock by Montre Royale.
La Cote des Montres : Enchères Montre Royale – Three-Dialed Solar Rotating Clock Montre Royale de Geneve, N°065. Made circa 1980. Very fine, ingenious and impressive, solar-powered, revolving, tetradecagonal and triangular, gilt-brass
ROYAL MONTRES Watch Mens Watch Radio Solar Radio RM-0007 SV-AL 4582338810309 | eBay
Montre Royale, Geneve. An 18K two colour gold quartz bracelet watch - auctions & price archive