The long awaited Sturmanskie Dolphin line is finally here. In order to provide water proofing of up to 20 atm, the case is made of high-alloy stainless steel - also known as "marine grade stainless steel". The crown and case back are both screwed in, thus, proving best protection again high pressures. Clear geometric lines with fluorescent coating ensure best readability even in low-light conditions. On the case back you will find an engraving of a dolphin rider in the style of and as a tribute to the 1961 Soviet movie "Amphibian Man". Each Dolphin watch comes with one pre-mounted silicon strap in a beautiful Sturmanskie gift box. Movement: automatic caliber 2416 made in Russia. Central second, minute and hour hands Date Case: stainless steel Diameter: 38 x 45 mm Ilumination: Superluminova Turning Bezel Water Resistance: 20 ATM. Case back: screw in Limited edition: 500 pcs Original Box and warranty pass Made in Russia