On average, it takes around 2-3 hours. Of course it is fine to take a break here or there and resume the DIY project whenever you like it. The video instruction is precisely designed into small chunks of sections that allows you to take up one small step at a time.

Of course, there are many brands that have made their own movements from the start, including Piaget and Audemars Piguet. Arguably the best example of a brand that was founded on in-house movement-making is Breguet.