With so much work to do, it was only possible to make one watch each year and I did want all the watches to be different and so I began to think of ways of improving... little ideas like, when a watch is lying horizontal it keeps a different time to that which it keeps when it's vertical, due to the change in friction on the components. And I devised some jewels specially made to overcome this problem, and they were very successful. Once again, I took them Switzerland but they weren't interested. You know they said well, you know, if the watch keeps 10 seconds different time lying down to when it's standing up, well nobody cares. But I did care, it had to be right for me, I didn't want to fall into the same traps as others.

And then, of course, as the years went by I began to think more boldly about the watches and more complications came in, such as the watches with two trains. They weren't more complicated, but they were more complex and there was many more components to make... twice as many components in the one watch. But these watches have got rather a special place in horology. They are very highly regarded because they have the two separate trains culminating in a single escapement. The two feed into the single escapement so that both contribute to the timekeeping as both are governed by the escapement. This is a system that had not been used before and it is very successful, it keeps a phenomenal rate of time. So I devised it simply to do something different, but it turned out to be a very useful invention in the end.