Cartier Tank Francaise Chronograph Stahl-Gold

provides power to keep the clock going. In mechanical clocks, this is either a weight suspended from a cord wrapped around a pulley, or a spiral spring called a mainspring. In electric clocks, it is either a battery or the AC power line.Since clocks must run continuously, there is often a small secondary power source to keep the clock going temporarily during interruptions in the main power. In old mechanical clocks, a maintaining power spring kept the clock turning while the mainspring wa........

Good day Watch Talk Forum membersMay I ask if you could give me your thoughts on the following:I have a Must de Cartier watch that I had purchased when I was a Bank Manager over a decade ago. The watch suited my job and was my prized time piece as it is a really well made piece. I have since changed jobs and I don't wear it anymore, it sits in my cupboard and every few years take it to the Cartier shop to have the battery replaced. I want to sell the watch and have contacted a shop where the ........