The most famous Swiss brand that produces their own watch movements is Rolex. While Rolex does not produce extremely complicated movements, they are considered to be very well-made, and Rolex certainly produces a large number of them. Still large in production but way under Rolex numbers you have brands like Patek Philippe, Jaeger-LeCoultre, Blancpain, Piaget, A. Lange & Sohne, Zenith, and Audemars Piguet (among others) who produce in-house made mechanical movements for most all of their products.
Choć piszą:
made mechanical movements for most all of their products
a nie:
made mechanical movements for all of their products

W dzisiejszych czasach robienie wszystkiego samu jest zbyt drogie
