ALS: Again it depends on the complexity of the watch, the number of complications and if the development involves the construction of a new basis calibre. The average time may vary from three to five years, in exceptional cases it may take even longer.

Watches work by converting light, kinetic or electrical energy into the movement of watch parts. The mechanism that tracks time is called the “movement” and is comprised of many small parts including, gears, springs and more. Different watch types use different watch movements.