Leather strap The classic option is a leather strap. Most of these straps are made from calf leather, which is soft and flexible for a comfortable fit. The advantage of leather straps is their environmental friendliness and hypoallergenicity. Also, the strap can be matched to the color of other accessories to complete the look. Stainless steel case The watch case is made of stainless steel, which is not subject to corrosion. At the same time, the watch will retain its original appearance for a long time due to the strength and reliability of the metal. Battery-powered clock The battery in such clocks is powered by a quartz movement. The battery life is usually several years, after which it will have to be changed. 30m Water Resistant Watch with minimum water resistance, which is designed to withstand splashes and drops (when washing hands or from raindrops). Mineral watch glass Mineral glass is the most common watch material. This is the same material that is used for windows, but in the case of clocks, the glass is further tempered to make it stronger. However, it is still easier to scratch than sapphire glass. Of the benefits - not prickly like sapphire crystal. With a direct impact on the glass, it only breaks, the sapphire glass breaks in half. Quartz watches Quartz watches use battery power. They are considered more accurate and convenient.