The concept is the same as when you get a beep each time you press a button on your mobile phone.Attention to detail all over the watch is fantastic. The hour markers around the dial are jewels that match the color theme of the watch. Here they are sapphires. The movement decoration, finishing and detail of the case, everything is amazing. Another example is that the strap ends where the butterfly deployment attached has a spring mechanism that gives about 1-2mm of pull. Why? Just to make sure the watch strap stays comfy if your wrist expands when you clench your first. Just like stretchy pants.If you can afford one of these watches, I highly recommend it. Very cool, very unique, and very exclusive. Just what Claret was going for. He made the Dual Tow for his company's 20th anniversary, I hope he keeps this type of work up. The tourbillon just sort of placidly sits there, minding its own business... being complex and understated. The star of the dial from a technical standpoint is the planetary gear array that controls the chronograph. Like a many armed Indian God, the gear system presses multiple points at once. Claret meant to poke not only your visual interest, but at each press of the pusher, you hear a "chime." Claret's most classic talent is in minute repeaters. So the man knows a good gong and hammer show. On the rear of the watch you'll see a hammer at the top of it with a thin pieces of blue steel like a wire going around the circumference of the movement like it was an internal antenna. That thin piece of steel is the gong, and needs to be relatively rigid and not touching anything else save for the base to make sound necessary to have a deep little chime. This mechanism is one of the other things activated when you press the chronograph pusher.