Automatic (self winding) mechanism. Movement – caliber Vostok 2416 with 31 Ruby jewels. Central second hand. Mean diary rate -20 +60 s/day. Water proof 20 ATM. Shock resistant. Date calendar. All stainless steel case. Size: 38 mm (42 mm with crown) x 13 mm. Rotating bezel. Self-illuminating hands and numbers. Screw-down crown. Stainless Bracelet. Made in Russia in 2013. 1 Year Warranty. The watch comes with original stainless steel band.