#movement, Swiss-made Automatic El Primero 400 Calibre 13 1/4" Movement, With 50-hour Power Reserve, 31 Jewels, 36, 000 Vph, Oscillating Weight With Côtes De Genève Motif #functions, Hour And Minute Hands, 12-hour Counter, 30-minute Counter, Small Second Hand #dial, Silver-tone Sunray Dial, Super-luminova®-coated Rhodium-plated Hands And Markers #case, Black Ceramicised Aluminium Case, Domed Anti-reflective, Scratch-resistant Sapphire Crystal And Transparent Case Back, Buckle-fastening Black Rubber Strap #specifications, Case Diameter: 42mm; Case Thickness 12.75mm; Min Strap Length: 19cm; Max Strap Length: 23cm; Strap Width: 2cm; Face Diameter: 40mm, Water Resistance: 10 Bar, Comes In A Presentation Box, Reference Number: 24.2041.400/01.r576, Manufactured In Switzerland. In the Swiss town of Le Locle during the 19th century, Zenith 's founder Mr Georges Favre-Jacot felt inspired to create the most precise and reliable watches ever made, this 'El Primero Chronomaster' is a testament to his talent, drive and dedication. First released in 1969, it still boasts the fastest movement in the world, making it iconic, covetable and collectable. This version has a perforated black rubber strap that will feel light and breathable on your wrist and a special black ceramicised aluminium case. We offer a two-year warranty for all working parts and manufacturing faults for luxury watches. Call our Customer Care team for more information.