A minute repeater movement (like a tiny Big Ben on your wrist - press the button and it chimes out the hour and minutes).A chronograph function - two, three, or four "eyes" (sub-dials).įly back hands for a variety of features.A perpetual calendar with day, date, and year, often executed with a chronograph function.A large date display - with one or two separate windows.A date (day of the month) display, either as a window showing the date or as a sub-dial, or, as a sweep hand pointing to a number on the outer edge of the dial. I surely missed some complications, but you get the point. Complications create an incredible variety for collectors.Ī watch winder is a device the holds your automatic watch and rotates it to keep the mainspring wound. Mechanical movements, automatic and hand-wound, both benefit from having their mainsprings work constantly. Why? Because moving watch parts keep the tiny amounts of lubrication around the pivot points from "gumming up." I do believe that is the technical term for it (not really). Gummy lubricants increase resistance which reduces timekeeping accuracy. Winders, like watches, come in a dizzying number of variations. Unlike the timepieces they cradle, there are fewer components. The case - This is the "box" that houses the motor, the head, and the controls. It can be utilitarian (I have seen skeletonized models) or an artfully crafted piece of furniture. Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives. The case may include a jewelry or valet tray. It may have a cover over the heads or not. The size of the case depends upon the number of heads. A travel winder can fit in a carry-on while others can fill an entire wall. The heads - These are the cups and pillows that keep the watch secure while the winder is operating. The cup should be lined with soft material to protect the finish of your timepiece. The pillow should also be covered in similar materials and have sturdy foam filling. Once set into the cup, the watch should not move as the motor rotates. If you have some larger watches (50 mm+), be sure the winder head can accommodate it. The motor(s) - It is common for multi-head winders to have a drive motor for each cup. This allows you to turn off any motor not in use. ![]() However, no matter where I place the seesaw, I can't get the bowling ball to tilt it. The solution depended upon the bowling ball hitting a seesaw, which has a rope attached to a fire starter, which ignited the rocket. Outside of travel models, winders typically run on standard household voltage. Hey there I've been working at the stage 'Rocket Science' in the Medium level for a long while now, and even after trying to replicate the official solution, I can't do it. Place the winder near an outlet, plug it in, insert the watch, and turn it on. The controls - The most basic winder provides switches that allow the motor to turn clockwise or counterclockwise (bi-directional). This is important because some movements should only be wound in one direction.
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