The revolver clasp asks little: keep the barrel and tongue clear of debris and residue. A jeweler can address lubrication or tension as part of any routine service.
Meet The Maker
Cartier, Van Cleef & Arpels, and Hermes all maintain active enamel production. The vivid, graphic color that those pieces require isn't achievable through gemstones.
Visually Speaking
The peacock is technically demanding as a jewelry motif for a specific reason: iridescent tail feathers in metal and stone require multiple colored gemstones, enamel, and placement precise enough to approximate naturalistic plumage. A well-executed peacock piece carries visible craft, even to someone not actively looking for it.