Jaeger-Lecoultre V1 Version, .V2 Version with engraved movement + .JJF - Original Weight Moon Phase Master .Jaeger-LeCoultre Moon Phase Master Series .Latest version from JJF Factory with original weight, 39MM size x 9.6MM thickness, currently the thinnest model on the market, truly closest to the original.1. The movement features a Dandong integrated cal. movement synchronized with the store model, and the back cover is finely engraved with filled oil lettering, restoring the details! Unlike other generic movements or deck movements on the market.2. The case is made from high-quality stainless steel with CNC processing, providing an almost perfect slim and clean finish! .3. The strap is made from genuine Italian calfskin and upgraded to the latest version with quick-release functionality, matching the original with an easy-to-remove buckle. The curvature of the buckle has been increased to enhance wearing comfort.4. The slightly curved dial features a sunburst pattern with enamel polishing, and the logo has been upgraded from the old printed version to a three-dimensional metal logo, significantly enhancing the overall texture and detail! .JJF Factory strives for perfection and invites you to experience the Moon Phase Master that is closest to the original!