BLS produces Jaeger Lecoultre movement using Japanese 9015 movement quality assurance three years zero repair Jaeger Lecoultre Polaris calendar watch, modern double handle design, with elegant and sporty fluent lines. Deep and elegant, yet extraordinary. [Case] ​​Watch size 42X13.1mm Classic and capable case is hand-polished, side brushing, edge polishing, craftsmanship and process Xin are consistent with the original, the bottom cover is also engraved with Jaeger-LeCoultre style diving clothing, engraved decoration. [Strap buckle] Natural rubber strap, thin, long and soft, enough to wrap around the wrist, with Jaeger-LeCoultre original buckle.