In Swiss watchmaking, there are codified quality grades that apply to the same base caliber: these are not different movements, but the same mechanics selected, finished and tested according to progressively stricter standards. The most common hierarchy, the one I see arriving at my workbench every day, starts from Standard grade and rises toward Élaboré, Top Grade, Soignée, up to proprietary marks like the Poinçon de Genève or the Patek Philippe Seal.
The Élaboré grade is the first significant step up from Standard. On a Sellita SW300-1 or SW266-1, it means tighter adjustment tolerances, visible finishes like perlage on the plates and circular graining, and an additional testing cycle in multiple positions. The stated precision generally hovers around ±5 seconds per day: it's not COSC, but it's verified data, not a catalog approximation. The term Élaboré is often written without the accent in English technical documents, but the concept remains unchanged.
The Top Grade adds further qualitative selection: movements are chosen from those that maintain the tightest tolerances already coming off the production line, then reworked with custom rotors and more refined decorations. I've seen Sellita SW300-1 Top Grade with timing values around absolute zero under laboratory conditions, although in everyday life the result always depends on the technician's final regulation.
The Soignée grade is the top level for mid-to-high-end Swiss automatic movements: on the La Joux-Perret G101, for example, it includes the seconds stopping mechanism (hacking) and an engraved rotor, elements that don't exist in lower versions of the same caliber.
At the top are non-negotiable quality marks. The Poinçon de Genève requires that the movement be built and assembled in the Canton of Geneva, with finish and anglage criteria verified piece by piece: the anglage, which is the polished bevel on the edges of bridges and plates, must be executed according to proper standards, and even though many manufactures today use CNC machines for this operation, the inspection remains rigorous. The Patek Philippe Seal is an even more binding proprietary standard that concerns precision, power reserve, resistance and finish together.
The practical distinction I always make with clients: the grade influences the visible finish under the transparent caseback and the stated precision, but it doesn't change the structural robustness of the caliber. A well-regulated Standard movement can perform better than a neglected Élaboré. The grade certifies the starting point, not the result over time.