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In short, gravity creates drag on the escapement wheel, which is the main component regulating the time-keeping of your watch. One of the biggest focuses in the watch industry has been placed on watch accuracy (see our article on this topic). After all, that is what the watch has been designed to do! On the other hand, if you own a watch with complications that will need to be reset every time the watch stops, such as a perpetual calendar, the benefits of keeping your watch constantly running far outweigh the perceived worry of adding extra stress to the movement. The short answer is, YES but only very minimal extra stress, nothing that one should be concerned about. Let’s start by saying that mechanical watches are designed to be worn constantly, so the same question can be asked if you wear the watch every day. Will keeping the watch constantly running put extra stress on the movement? However, if your watch requires only 650 winds per day & you put it on a winder that is set for 800 winds per day that would really be fine as the few extra winds will not hurt your watch. For example, we would advise against putting a watch that requires only 650 turns per day on a winder set for 1800 turns per day, as this would result in extra wear & tear on the winding gears for no reason. Watches are built to withstand constant motion however, since there is no benefit to keep winding a watch that is already wound, it would be wise to buy a winder that can be programmed to the needs of your watch. Once the mainspring is fully wound the winding gears (rotor & crown) decouples/disengages from the movement. No, an automatic watch cannot be overwound. A non-programmable winder that turns in both directions would need to make a minimum 1800 turns per day in order to keep the watch fully wound, as half those turns will do nothing to wind your watch. In order to keep this watch fully wound you will require a winder that turns in either direction at least 650-800 per day. The rotor on the 4130 movement will wind the watch when turned in any direction AND requires a minimum of 650-800 turns per day (37 turns per hour).
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The Rolex Daytona 116520 houses Rolex’s 4130 caliber. As such, most watch winders will work fine for this movement. In addition, since the rotor on the 3135 winds the movement bi-directionally, it doesn't really matter if the winding direction of your winder is programmable or not. Most watch winders turn the required 650 times a day. The 3135 features a bi-directional winding rotor which requires a minimum of 650 turns per day (27 turns per hour). The Rolex Submariner houses Rolex's 3135 caliber.
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Scenarios regarding winding direction & turns per day: