Limited edition, Bracelet/ Case material: stainless steel Stainless steel 316L (Stainless Steel) is a very durable material that theoretically can not be destroyed. Movement: automatic movement: Automatic watches are powered by mechanical movement. They work on the principle of gradual opening of coiled spring. The energy of natural hand movements is transmitted during watch wearing through the rotor winding system, which automatically tightens the spring. Date - the day of the month: Displays the current day of the month period from 1 to 31 December. Date - the day of the week: Displays the current day of the week. Abbreviations days are in English (in rare cases a day of the week can be in German or in another language). LumiBrite is a dramatically improved fluorescent luminous paint that quickly absorbs a greater amount of the light energy exposed to it and glows brighter and much longer in the dark. Water resistance: 100M/10ATM Closure type: Folding Clasp with Safety Flip-lock Diver Clasp is the most widely used method of fastening straps and bracelets of watches. The buckle is also supplemented by a safety stop. If the lock is unlocked there is no accidental dropping of the watch. This is a very reliable method of fastening.