I’m always interested in learning new firecraft methods. Years ago I read that Mayan priests have been known to use bracelets to create fire during fire ceremonies. They evidently crafted a parabolic disk surface into their bracelet much like the bottom of a soda can that has become a popular solar fire method in recent years.

In keeping with the idea of using a wrist mounted reflector, I wondered if a concave watch face would work so I began a search for one and found one.

As usual, the size of an optical device can make a huge difference in results. A watch face is relatively small but under full sunlight it can successfully create an ember.

While using a reflector solar device, be sure to point it directly at the sun. If a small reflector is used it might need to be slightly offset so your tinder will not block the sun.

You can determine the focal point of the sun’s rays by placing your finger above the reflecting surface and raise it or lower it to observe where the light is aimed and how broad or narrow is the beam. The smallest point of light is the hot spot where your tinder should be held.

As with all optical methods it is best to select dark material for tinder and if it is fiberous, pinch it tight to create a flat surface on which to focus as there is no focus on fluff. The condensed material also transfers heat and helps to create a coal.

In the photo I wore the watch on my wrist to illustrate the possible use and method of a bracelet to light fire during a Mayan ceremony. However, I found that using the watch in hand was more convenient. I’m happy to say that my solar experiment was successful.