Citizen Promaster Mechanical 20 ATM Water SKY Silver Watch, Resistant, Series, Black, NB6046-59E, Men's,

Citizen PROMASTER: A genuine sports watch that combines functionality, durability, and safety. This authentic mechanical watch features a high-spec mechanical movement with a GMT function. Its classic design features a 24-hour display on the bezel, and the hour hand moves automatically when you turn the crown. [A classic design with a 24-hour display on the bezel] The case, featuring extensive hairline detailing, and the band, featuring a mirror finish on parts, create a gorgeous finish. The lugs connecting the case and band are inspired by the aerofoils of airplanes that glide lightly through the sky. The case back is engraved with an aviation helmet, symbolizing the tools a pilot would wear with confidence. [A Serious Pilot's Watch] The watch features thick, powerful hour, minute, and 24-hour hands for excellent visibility, an index design inherited from previous SKY series models, and a uniquely rounded bezel. Each part is balanced to highlight the GMT function. A screw-lock crown at the 3 o'clock position enhances durability. The rotating faceplate ring also features an aviation slide rule function, which is useful in the unlikely event of instrument trouble, for enhanced operability. [Mechanical automatic watch] This is a mechanical automatic watch powered by a mainspring. When you wear the watch on your wrist, the movement of your arm moves a rotating weight inside the watch, automatically winding the mainspring. You can also wind the mainspring by hand. (You can also find instructions on how to do this in the instruction manual on the manufacturer's website.) [Product Details] Mechanical watch, automatic and manual winding, -10 to +20 seconds per day, approximately 50 hours (when fully wound), sapphire crystal (anti-reflective coating), case and band: stainless steel, water resistant to 20 bar, two types of magnetic resistance, luminous hands and indexes, aviation slide rule, screw-down crown