Model 2424/21118B The Vostok 2424 movement. The number of jewels is 17. Time of day indication using the clockwise hand. An instant calendar. 24 mm caliber movement with a central second hand. Shockproof device of the balance node. Case: brass watch case. Watch back cover: stainless steel. Coating: chrome. Organic glass. Water protection: 2 atmospheres. Genuine leather belt, 18 mm wide. The energy reserve of one spring winding is at least 36 hours. Average daily running time: -20... +60 seconds per day. The average service life of the mechanism is 10 years. Weight: 60 g. Dimensions: 40.9 x 44.4 x 12 mm