SPLENDID NEW RALF TECH WRX E-MATIC! With an RTE001 movement based on a YT58B. Kinetic quartz movements, also called auto-quartz, are electronic movements on which an oscillating weight has been mounted. This rotor turns, just like an automatic watch, according to the movements of the wrist and in a perpetual way in order to generate an electric current stored in a battery or in a capacitor. It is a system made famous by the Japanese brand Seiko that gave it its name: Kinetic, in reference to the kinetic movement that characterises the operation of automatic movements. This is a relatively rare type of movement on the watchmaking market and very little used by other brands. Diameter: 47.5 mm 40 ATM / 1300FT Day and date in English, French or Spanish. Rotating bezel. Power reserve superior to 60 days. Calf leather strap, crocodile imitation, black. 24 cm Extra Nato strap. With no box. Limited series. 1-year warranty on receipt. Guaranteed delivery Professional seller.