Experience the relaunch of the Citizen Series 8 Collection with the 831 model. This watch features an eye-catching octagonal case complemented by a simpler monotone dial and stylish, tapering hands. The detailed index markers add a dynamic look, while the bold hairline finish of the bracelet with its clean, straight lines harmonizes with the case's simple design. Key features include Sapphire glass with anti-reflective coating, a 42-hour power reserve once fully wound, and antimagnetic resistance up to 16,000 A/m. The watch boasts an automatic movement, meaning it recharges with wrist movement and never needs a battery. It displays the date and features luminous hands and numbers for visibility. The high-quality black stainless steel strap measures 21 cm in length and 21 mm in width, secured with a fold-over clasp with a push-button. The case has a diameter of 40 mm and a thickness of 11 mm, with a black case color and a blue dial color. It is water-resistant up to 10 bars and weighs 165 g. The watch comes in an original gift box and includes a 2-year warranty.