Pocket watch: rarity, very fine English verge watch with agate case and diamond setting, James Hubert London No.585, ca. 1750: Ca. Ø39mm, ca. 58g, high-carat gold, at least 18K, possibly also 20 or 22K, extremely decorative agate, face decorated with large rose cut diamonds, opening button also set with a large rose cut diamond, signed and numbered verge movement, enamel dial (small chip at the winding hole), probably original hands, in very beautiful condition, intact, rare piece. David and James Hubert made these precious pieces around 1750. They manufactured both pocket watch cases and table clocks made of agate and other stones, e.g. no.1970 (https://www.cortrie.de/go/2lB), No.1213 (https://www.cortrie.de/go/AYA) and the no.657 (https://www.cortrie.de/go/WZL).