Single Calendar Double Calendar .Introducing the Longines Classic Vintage Series Model 1832 Mechanical Men's Watch: L4.825.4.92.2! Its simplicity and elegance exude a calm demeanor! .1. The watch dimensions are 40x12mm. Every detail is meticulously crafted to recreate the unique elegance of the Master Craftsman series case, ensuring a comfortable fit for the wearer. The sword-shaped hands add a touch of sophistication.2. The dial features small diamond-cut markers, enhanced with Swiss super luminous ice blue glow. The operation and adjustment methods are synchronized with the original version. The wheat grain texture on the dial is identical to that of the genuine product, indistinguishable to the naked eye.3. The strap buckle is made from a vintage faux crocodile deep brown leather strap, soft and comfortable, paired with the classic embossed pin buckle from Longines. Electroplating: utilizes a nano vacuum process for everlasting color retention.4. The movement is powered by the Swiss 2836 mechanical movement, with market details matching the original exactly. The waterproof system has been extensively reinforced, both inside and out. We invite watch enthusiasts to appreciate this masterpiece.