Jaeger-LeCoultre Master

With its sleek 4.64mm build, this movement powers watches in the widely-popular Polaris and Master Ultra Thin collections. Each calibre 899 undergoes a rigorous testing program known as '1,000 Hour Control', where the movement is tested before and after casing. Only the calibres that meet the stringent standards of the maison leave the factory, a proof of this manifests in the form of a seal on the caseback. Calibre 899 is an ultra-thin self-winding movement with a 70-hour power reserve. It is used in Jaeger-LeCoultre watches with a basic three-hand display and a date feature. Displayed through the sapphire crystal, the impeccable mechanism of the Jaeger-LeCoultre calibre 899 features 32 jewels and operates at a beat rate of 28,800 vph. Last but not least, the Geneva stripes and bluish screws elevate the allure of the mechanism.