• On manual wind watches you definitely can overwind. The end of the spring is usually fixed to the inside of the barrel and over winding can break it off.

    On automatics, because the winding mechanism can be constantly winding the spring, the inside of the barrel wall usually has notches and the end of the spring drags along the wall and ratchets into them. So you’ll feel resistance when it’s fully wound but you can keep winding, even though it’s not the best thing for it.

  • I know the answer is probably rtfm but how much should I be winding my moonwatch? I usually give it fifty or so ‘winds’ but I doubt they’re full rotations. Presumably if you wind more than actually required every day at some point you hit the limit?

  • A Moonwatch is easy to wind fully. You can feel quite clearly when it’s fully wound, you hit the resistance. Just don’t be ham fisted and it’ll be fine. It’s probably not much more than what you’re already winding. Ease up to it and you’ll see how it feels.

  • Dude at a local watch shop (Robin Martin in Portsmouth) told me that the standard 1861 Moonwatch should be wound daily, to “keep it topped up” for beat performance of the movement. Almost like its designed to be wound daily even though the power reserve is 40 something hours.

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