Jaeger-Lecoultre JJF - Original Weight Moonphase Master .Jaeger-LeCoultre Moonphase Master Series .The latest version from JJF Factory is the original weight edition, featuring a 39MM case size and a thickness of 9.6MM, currently the thinnest and closest to the original on the market.1. The movement uses a Dandong integrated Caliber movement, synchronized with the official model, and features finely engraved oil-filled lettering on the case back, restoring intricate details! This is not a modified or deck movement from other generic brands on the market.2. The case is made from L-grade stainless steel, processed with CNC technology, giving it an almost perfect slim and clean appearance! .3. The strap is made from genuine Italian calf leather and has been upgraded to the latest version with quick-release functionality, matching the original buckle design. The curvature of the buckle has been increased to enhance wearing comfort and feel.4. The slightly curved dial features a sunburst finish, polished with enamel, and the logo has been upgraded from the previously 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 Moonphase Master that is closest to the original!