LGS brand new ceiling LONGINES Longines L2.773.4 eight-pin moon phase multi-function mechanical [movement] equipped with 7751 exclusive blue steel wheel fully automatic mechanical movement modified from the original L2.687.5 latest hollow automatic hammer, upgraded and improved technology is very stable and has a power reserve of up to 48 hours [Case] ​​"Hammer-pressed" 316L stainless steel. Size 40MM. After computer CNC engraving, ultra-precision waterproof depth meter [Literal] The hands are made of quenched burnt steel blue, and the gold-plated moon phase disk is used for the first time to open the original mold. The original display has been customized to correct the unevenness and is consistent with the original details. [Watch strap] 316L stainless steel has been cut and polished in pieces, and then hand-assembled to a degree with no dead ends and no scratches. The real thing is exquisite, heavy, strong and durable, and it is absolutely amazing when you get it. ( Comes with a set of calf leather belt and original belt buckle, you can choose from black or brown),