Because I have no watchmaking skills, understanding the complexities of how repeaters operate is beyond me. Some years ago, there was an excellent multi-part article on repeater mechanics in the Bulletin. I read it, but with little comprehension. With that mea culpa, I will sally forth (like Don Quijote) with an attempted layman's explanation. I would appreciate your comments on it. If my explanation is risible, be gentle with your comments. I think every repeater has four basic mechanisms, a switch that triggers the repeat function, a power source that runs it, a mechanism that counts out the interval being repeated, e.g., hours, which I will call the "count mechanism," and a hammer mechanism that makes the repeat sound. I am sure that there are different versions of each of these four basic mechanisms. What I want to focus on in this thread is what I am calling the count mechanism. I surmise that this mechanism would be substantially similar whether it is counting hours, minutes or any other interval. I further surmise that if the watch repeats more than one interval, it needs separate count mechanisms for each interval, plus a sequencing mechanism that makes it repeat time first for the larger intervals and then for smaller intervals. If this is correct, then any two-interval repeater, e.g., a quarter repeater or a 5-minute repeater, of the same design would be substantially similar. The only difference would be minor changes in the second-interval count mechanism. If so, then any three-interval repeater, such as a typical minute repeater, only would be more complicated than a two-interval repeater of the same design because it would have three count mechanisms and two sequencing mechanisms. Is this analysis correct?