Correct, I was asking about makers.The OP's question was a bit vague and maybe I'm interpreting it wrong, but my sense is that they're asking about the best pocket watch makers. And my point is that it depends. A watch that has an observatory certificate is clearly a good watch. Even the modern COSC certification, as watered down as it is, still tells you that the movement was a good movement. But that only tells you about that watch. It doesn't necessarily tell you about the non-certified watches from the same company. Some brands (like Patek) have always focused on higher-quality, so it's easy to point to them and say "high quality". Waltham, on the other hand, made a range of products from cheap, simply finished 7j watches to exquisitely finished and high precision Observatory Certified watches. That means that you can't just pick up a Waltham and say "That's a good watch". The same is true of most American companies. In fact, that's true of most watch companies period, but the Swiss have this knack for re-inventing themselves. Omega is the most notable; back in the early 20th century, they were the same as any of the American companies in terms of the range of products they offered. But to the modern consumer, there's this implicit belief that if it says "Omega", it must be high quality. Rolex went through an early phase of offering lower-quality watches, but nowadays even their 2nd tier brands go for a premium.