Model 2416/020706 The Vostok 2416B mechanical movement. The number of jewels is 31. 24 mm caliber movement with a central second hand. Automatic winding with a spring safety. An instant calendar. Frequency: 19800 half-vibrations per hour. Case: stainless steel (case ring, watch dial, crown, watch back cover). The hour markers and hands are covered with fluorescent paint of variable action. Organic glass. Water resistance: 20 atmospheres (200 meters). The bracelet is made of stainless steel with a width of 20 mm. The power reserve of one spring is at least 31 hours. Average daily running time: -20... +60 seconds per day. The average service life of the movement is 10 years. Weight: 155 g. Dimensions: 41.5 x 48.6 x 15 mm.