Some watch scales and pointers to do so much?

The large scale, large hands, and the accompanying luminosity are all for easy reading in poor light. These scenarios may include: dive (submarine light is really bad), cave exploration (you know), polar expeditions (polar nights), cabins, etc. Reading the exact time quickly in a dark light scene is crucial, even directly related to life safety, which is a sign of a professional watch (not just to look good). It is also important to emphasize that the luminous effect of modern watches is not limited to the self-illumination of the ball of Ball. The luminous effects of other brands need to be bright or luminous in the presence of sunlight or ultraviolet light for one to two hours. Because modern wristwatches, including the Polch tube, take into account that the luminous value of the luminous material cannot influence the health of the wearer. The words "Swiss-T<25" written at the 6 o'clock position of the Rolex watch before 2000 are historical imprints. Later, since the radiation value was less than 25, it became the industry standard for the Swiss watch industry, and Rolex no longer wrote it but rewritten "Swiss Made." This event has become an important basis for today's Rolex second-hand watches (missing birth paper).