Produced by SJ, the Jaeger-LeCoultre JL Master Series BD2 Big Three-Hand Watch Q1548420 features a case diameter of 40mm and a thickness of 8.5mm.Technical Highlights:.Equipped with an imported ETA movement, it incorporates Jaeger-LeCoultre's own Cal. 925/1 movement, meticulously crafted using German CNC milling machines for exquisite and clear patterns. It boasts the market's only vertical Geneva stripes, and the CNC-engraved hollow chain box enhances the movement's visual appeal, making it distinctly Jaeger-LeCoultre.The automatic rotor is plated with a specially tuned rose gold color, unlike the ordinary red gold found in the market, and the rotor screws feature round-headed blue steel screws, showcasing genuine craftsmanship.SJ proudly recommends this exquisite men's mechanical watch.